Home / 4,787.40-6,606-2,691.12

Finding the Fourth Proportional to 4,787.40, 6,606 and 2,691.12

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Solution

The fourth proportional to 4,787.40, 6,606 and 2,691.12 is: 3,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.40 : 6,606 = 2,691.12 : x
  2. Step 2: Convert to fraction form
    4,787.40/6,606 = 2,691.12/x
  3. Step 3: Cross multiply
    4,787.40x = 6,606 × 2,691.12
  4. Step 4: Simplify right side
    4,787.40x = 17,777,538.72
  5. Step 5: Solve for x
    x = 17,777,538.72/4,787.40
  6. Step 6: Final answer
    x = 3,713.40

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1.5x scale

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.