Home / 2,225.46-3,071.12-1,230.77

Finding the Fourth Proportional to 2,225.46, 3,071.12 and 1,230.77

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Solution

The fourth proportional to 2,225.46, 3,071.12 and 1,230.77 is: 1,698.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.46 : 3,071.12 = 1,230.77 : x
  2. Step 2: Convert to fraction form
    2,225.46/3,071.12 = 1,230.77/x
  3. Step 3: Cross multiply
    2,225.46x = 3,071.12 × 1,230.77
  4. Step 4: Simplify right side
    2,225.46x = 3,779,820.85
  5. Step 5: Solve for x
    x = 3,779,820.85/2,225.46
  6. Step 6: Final answer
    x = 1,698.44

Related Problems

Find fourth proportional to 1,112.73, 1,535.56 and 615.38
Half scale
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Double scale
Find fourth proportional to 2,226.46, 3,072.49 and 1,231.77
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.