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Finding the Fourth Proportional to 6,158.50, 8,496.90 and 3,640.84

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Solution

The fourth proportional to 6,158.50, 8,496.90 and 3,640.84 is: 5,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,158.50 : 8,496.90 = 3,640.84 : x
  2. Step 2: Convert to fraction form
    6,158.50/8,496.90 = 3,640.84/x
  3. Step 3: Cross multiply
    6,158.50x = 8,496.90 × 3,640.84
  4. Step 4: Simplify right side
    6,158.50x = 30,935,853.40
  5. Step 5: Solve for x
    x = 30,935,853.40/6,158.50
  6. Step 6: Final answer
    x = 5,023.28

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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.