Home / 5,456.71-7,531.05-3,219.31

Finding the Fourth Proportional to 5,456.71, 7,531.05 and 3,219.31

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Solution

The fourth proportional to 5,456.71, 7,531.05 and 3,219.31 is: 4,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.71 : 7,531.05 = 3,219.31 : x
  2. Step 2: Convert to fraction form
    5,456.71/7,531.05 = 3,219.31/x
  3. Step 3: Cross multiply
    5,456.71x = 7,531.05 × 3,219.31
  4. Step 4: Simplify right side
    5,456.71x = 24,244,784.58
  5. Step 5: Solve for x
    x = 24,244,784.58/5,456.71
  6. Step 6: Final answer
    x = 4,443.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.