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Finding the Fourth Proportional to 5,600.64, 8,400.96 and 2,479.98

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Solution

The fourth proportional to 5,600.64, 8,400.96 and 2,479.98 is: 3,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,600.64 : 8,400.96 = 2,479.98 : x
  2. Step 2: Convert to fraction form
    5,600.64/8,400.96 = 2,479.98/x
  3. Step 3: Cross multiply
    5,600.64x = 8,400.96 × 2,479.98
  4. Step 4: Simplify right side
    5,600.64x = 20,834,212.78
  5. Step 5: Solve for x
    x = 20,834,212.78/5,600.64
  6. Step 6: Final answer
    x = 3,719.97

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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.