Home / 1,521.30-2,281.93-481.26

Finding the Fourth Proportional to 1,521.30, 2,281.93 and 481.26

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Solution

The fourth proportional to 1,521.30, 2,281.93 and 481.26 is: 721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.30 : 2,281.93 = 481.26 : x
  2. Step 2: Convert to fraction form
    1,521.30/2,281.93 = 481.26/x
  3. Step 3: Cross multiply
    1,521.30x = 2,281.93 × 481.26
  4. Step 4: Simplify right side
    1,521.30x = 1,098,201.63
  5. Step 5: Solve for x
    x = 1,098,201.63/1,521.30
  6. Step 6: Final answer
    x = 721.88

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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.