Home / 1,555.29-2,332.23-459.27

Finding the Fourth Proportional to 1,555.29, 2,332.23 and 459.27

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Solution

The fourth proportional to 1,555.29, 2,332.23 and 459.27 is: 688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.29 : 2,332.23 = 459.27 : x
  2. Step 2: Convert to fraction form
    1,555.29/2,332.23 = 459.27/x
  3. Step 3: Cross multiply
    1,555.29x = 2,332.23 × 459.27
  4. Step 4: Simplify right side
    1,555.29x = 1,071,123.27
  5. Step 5: Solve for x
    x = 1,071,123.27/1,555.29
  6. Step 6: Final answer
    x = 688.70

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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.