Home / 2,225.52-3,071.05-1,230.70

Finding the Fourth Proportional to 2,225.52, 3,071.05 and 1,230.70

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Solution

The fourth proportional to 2,225.52, 3,071.05 and 1,230.70 is: 1,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.52 : 3,071.05 = 1,230.70 : x
  2. Step 2: Convert to fraction form
    2,225.52/3,071.05 = 1,230.70/x
  3. Step 3: Cross multiply
    2,225.52x = 3,071.05 × 1,230.70
  4. Step 4: Simplify right side
    2,225.52x = 3,779,541.24
  5. Step 5: Solve for x
    x = 3,779,541.24/2,225.52
  6. Step 6: Final answer
    x = 1,698.27

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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.