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Finding the Fourth Proportional to 5,908.64, 8,154.10 and 3,391.20

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Solution

The fourth proportional to 5,908.64, 8,154.10 and 3,391.20 is: 4,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,908.64 : 8,154.10 = 3,391.20 : x
  2. Step 2: Convert to fraction form
    5,908.64/8,154.10 = 3,391.20/x
  3. Step 3: Cross multiply
    5,908.64x = 8,154.10 × 3,391.20
  4. Step 4: Simplify right side
    5,908.64x = 27,652,188.16
  5. Step 5: Solve for x
    x = 27,652,188.16/5,908.64
  6. Step 6: Final answer
    x = 4,679.96

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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.