Home / 2,225.60-3,071.08-1,230.63

Finding the Fourth Proportional to 2,225.60, 3,071.08 and 1,230.63

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Solution

The fourth proportional to 2,225.60, 3,071.08 and 1,230.63 is: 1,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.60 : 3,071.08 = 1,230.63 : x
  2. Step 2: Convert to fraction form
    2,225.60/3,071.08 = 1,230.63/x
  3. Step 3: Cross multiply
    2,225.60x = 3,071.08 × 1,230.63
  4. Step 4: Simplify right side
    2,225.60x = 3,779,357.03
  5. Step 5: Solve for x
    x = 3,779,357.03/2,225.60
  6. Step 6: Final answer
    x = 1,698.13

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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.