Home / 1,495.18-2,242.79-521.31

Finding the Fourth Proportional to 1,495.18, 2,242.79 and 521.31

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Solution

The fourth proportional to 1,495.18, 2,242.79 and 521.31 is: 781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.18 : 2,242.79 = 521.31 : x
  2. Step 2: Convert to fraction form
    1,495.18/2,242.79 = 521.31/x
  3. Step 3: Cross multiply
    1,495.18x = 2,242.79 × 521.31
  4. Step 4: Simplify right side
    1,495.18x = 1,169,188.85
  5. Step 5: Solve for x
    x = 1,169,188.85/1,495.18
  6. Step 6: Final answer
    x = 781.97

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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.