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Finding the Fourth Proportional to 5,660.07, 7,811.84 and 3,142.99

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Solution

The fourth proportional to 5,660.07, 7,811.84 and 3,142.99 is: 4,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.07 : 7,811.84 = 3,142.99 : x
  2. Step 2: Convert to fraction form
    5,660.07/7,811.84 = 3,142.99/x
  3. Step 3: Cross multiply
    5,660.07x = 7,811.84 × 3,142.99
  4. Step 4: Simplify right side
    5,660.07x = 24,552,535.00
  5. Step 5: Solve for x
    x = 24,552,535.00/5,660.07
  6. Step 6: Final answer
    x = 4,337.85

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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.