Home / 1,613.28-2,227.20-1,090.24

Finding the Fourth Proportional to 1,613.28, 2,227.20 and 1,090.24

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Solution

The fourth proportional to 1,613.28, 2,227.20 and 1,090.24 is: 1,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.28 : 2,227.20 = 1,090.24 : x
  2. Step 2: Convert to fraction form
    1,613.28/2,227.20 = 1,090.24/x
  3. Step 3: Cross multiply
    1,613.28x = 2,227.20 × 1,090.24
  4. Step 4: Simplify right side
    1,613.28x = 2,428,182.53
  5. Step 5: Solve for x
    x = 2,428,182.53/1,613.28
  6. Step 6: Final answer
    x = 1,505.12

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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.