Home / 5,287.62-7,966.76-4,787.94

Finding the Fourth Proportional to 5,287.62, 7,966.76 and 4,787.94

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Solution

The fourth proportional to 5,287.62, 7,966.76 and 4,787.94 is: 7,213.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.62 : 7,966.76 = 4,787.94 : x
  2. Step 2: Convert to fraction form
    5,287.62/7,966.76 = 4,787.94/x
  3. Step 3: Cross multiply
    5,287.62x = 7,966.76 × 4,787.94
  4. Step 4: Simplify right side
    5,287.62x = 38,144,344.93
  5. Step 5: Solve for x
    x = 38,144,344.93/5,287.62
  6. Step 6: Final answer
    x = 7,213.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.