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Finding the Fourth Proportional to 5,373.81, 8,059.68 and 1,478.16

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Solution

The fourth proportional to 5,373.81, 8,059.68 and 1,478.16 is: 2,216.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.81 : 8,059.68 = 1,478.16 : x
  2. Step 2: Convert to fraction form
    5,373.81/8,059.68 = 1,478.16/x
  3. Step 3: Cross multiply
    5,373.81x = 8,059.68 × 1,478.16
  4. Step 4: Simplify right side
    5,373.81x = 11,913,496.59
  5. Step 5: Solve for x
    x = 11,913,496.59/5,373.81
  6. Step 6: Final answer
    x = 2,216.96

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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.