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Finding the Fourth Proportional to 5,599.92, 8,399.76 and 1,439.94

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Solution

The fourth proportional to 5,599.92, 8,399.76 and 1,439.94 is: 2,159.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.92 : 8,399.76 = 1,439.94 : x
  2. Step 2: Convert to fraction form
    5,599.92/8,399.76 = 1,439.94/x
  3. Step 3: Cross multiply
    5,599.92x = 8,399.76 × 1,439.94
  4. Step 4: Simplify right side
    5,599.92x = 12,095,150.41
  5. Step 5: Solve for x
    x = 12,095,150.41/5,599.92
  6. Step 6: Final answer
    x = 2,159.88

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Double scale
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Similar ratio
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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.