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Finding the Fourth Proportional to 3,251.80, 4,880.90 and 1,610.20

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Solution

The fourth proportional to 3,251.80, 4,880.90 and 1,610.20 is: 2,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.80 : 4,880.90 = 1,610.20 : x
  2. Step 2: Convert to fraction form
    3,251.80/4,880.90 = 1,610.20/x
  3. Step 3: Cross multiply
    3,251.80x = 4,880.90 × 1,610.20
  4. Step 4: Simplify right side
    3,251.80x = 7,859,225.18
  5. Step 5: Solve for x
    x = 7,859,225.18/3,251.80
  6. Step 6: Final answer
    x = 2,416.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.