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Finding the Fourth Proportional to 5,550.61, 7,659.13 and 3,160.90

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Solution

The fourth proportional to 5,550.61, 7,659.13 and 3,160.90 is: 4,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.61 : 7,659.13 = 3,160.90 : x
  2. Step 2: Convert to fraction form
    5,550.61/7,659.13 = 3,160.90/x
  3. Step 3: Cross multiply
    5,550.61x = 7,659.13 × 3,160.90
  4. Step 4: Simplify right side
    5,550.61x = 24,209,744.02
  5. Step 5: Solve for x
    x = 24,209,744.02/5,550.61
  6. Step 6: Final answer
    x = 4,361.64

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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.