Home / 4,787.52-7,181.28-1,324.68

Finding the Fourth Proportional to 4,787.52, 7,181.28 and 1,324.68

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Solution

The fourth proportional to 4,787.52, 7,181.28 and 1,324.68 is: 1,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.52 : 7,181.28 = 1,324.68 : x
  2. Step 2: Convert to fraction form
    4,787.52/7,181.28 = 1,324.68/x
  3. Step 3: Cross multiply
    4,787.52x = 7,181.28 × 1,324.68
  4. Step 4: Simplify right side
    4,787.52x = 9,512,897.99
  5. Step 5: Solve for x
    x = 9,512,897.99/4,787.52
  6. Step 6: Final answer
    x = 1,987.02

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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.