Home / 1,505.15-2,252.24-1,242.71

Finding the Fourth Proportional to 1,505.15, 2,252.24 and 1,242.71

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Solution

The fourth proportional to 1,505.15, 2,252.24 and 1,242.71 is: 1,859.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.15 : 2,252.24 = 1,242.71 : x
  2. Step 2: Convert to fraction form
    1,505.15/2,252.24 = 1,242.71/x
  3. Step 3: Cross multiply
    1,505.15x = 2,252.24 × 1,242.71
  4. Step 4: Simplify right side
    1,505.15x = 2,798,869.91
  5. Step 5: Solve for x
    x = 2,798,869.91/1,505.15
  6. Step 6: Final answer
    x = 1,859.54

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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.