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Finding the Fourth Proportional to 5,761.80, 7,947.77 and 3,523.77

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Solution

The fourth proportional to 5,761.80, 7,947.77 and 3,523.77 is: 4,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,761.80 : 7,947.77 = 3,523.77 : x
  2. Step 2: Convert to fraction form
    5,761.80/7,947.77 = 3,523.77/x
  3. Step 3: Cross multiply
    5,761.80x = 7,947.77 × 3,523.77
  4. Step 4: Simplify right side
    5,761.80x = 28,006,095.87
  5. Step 5: Solve for x
    x = 28,006,095.87/5,761.80
  6. Step 6: Final answer
    x = 4,860.65

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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.