Home / 1,531.27-2,296.91-491.38

Finding the Fourth Proportional to 1,531.27, 2,296.91 and 491.38

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Solution

The fourth proportional to 1,531.27, 2,296.91 and 491.38 is: 737.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.27 : 2,296.91 = 491.38 : x
  2. Step 2: Convert to fraction form
    1,531.27/2,296.91 = 491.38/x
  3. Step 3: Cross multiply
    1,531.27x = 2,296.91 × 491.38
  4. Step 4: Simplify right side
    1,531.27x = 1,128,655.64
  5. Step 5: Solve for x
    x = 1,128,655.64/1,531.27
  6. Step 6: Final answer
    x = 737.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.