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Finding the Fourth Proportional to 4,777.59, 6,591.60 and 2,787.69

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Solution

The fourth proportional to 4,777.59, 6,591.60 and 2,787.69 is: 3,846.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.59 : 6,591.60 = 2,787.69 : x
  2. Step 2: Convert to fraction form
    4,777.59/6,591.60 = 2,787.69/x
  3. Step 3: Cross multiply
    4,777.59x = 6,591.60 × 2,787.69
  4. Step 4: Simplify right side
    4,777.59x = 18,375,337.40
  5. Step 5: Solve for x
    x = 18,375,337.40/4,777.59
  6. Step 6: Final answer
    x = 3,846.15

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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.