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Finding the Fourth Proportional to 4,787.71, 6,607.17 and 2,798.35

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Solution

The fourth proportional to 4,787.71, 6,607.17 and 2,798.35 is: 3,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.71 : 6,607.17 = 2,798.35 : x
  2. Step 2: Convert to fraction form
    4,787.71/6,607.17 = 2,798.35/x
  3. Step 3: Cross multiply
    4,787.71x = 6,607.17 × 2,798.35
  4. Step 4: Simplify right side
    4,787.71x = 18,489,157.65
  5. Step 5: Solve for x
    x = 18,489,157.65/4,787.71
  6. Step 6: Final answer
    x = 3,861.80

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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.