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Finding the Fourth Proportional to 3,591.56, 4,957.16 and 2,100.20

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Solution

The fourth proportional to 3,591.56, 4,957.16 and 2,100.20 is: 2,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.56 : 4,957.16 = 2,100.20 : x
  2. Step 2: Convert to fraction form
    3,591.56/4,957.16 = 2,100.20/x
  3. Step 3: Cross multiply
    3,591.56x = 4,957.16 × 2,100.20
  4. Step 4: Simplify right side
    3,591.56x = 10,411,027.43
  5. Step 5: Solve for x
    x = 10,411,027.43/3,591.56
  6. Step 6: Final answer
    x = 2,898.75

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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.