Home / 1,155.38-1,733.10-424.48

Finding the Fourth Proportional to 1,155.38, 1,733.10 and 424.48

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Solution

The fourth proportional to 1,155.38, 1,733.10 and 424.48 is: 636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.38 : 1,733.10 = 424.48 : x
  2. Step 2: Convert to fraction form
    1,155.38/1,733.10 = 424.48/x
  3. Step 3: Cross multiply
    1,155.38x = 1,733.10 × 424.48
  4. Step 4: Simplify right side
    1,155.38x = 735,666.29
  5. Step 5: Solve for x
    x = 735,666.29/1,155.38
  6. Step 6: Final answer
    x = 636.73

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1.5x scale

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.