Home / 5,348.28-7,380.77-2,990.42

Finding the Fourth Proportional to 5,348.28, 7,380.77 and 2,990.42

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Solution

The fourth proportional to 5,348.28, 7,380.77 and 2,990.42 is: 4,126.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.28 : 7,380.77 = 2,990.42 : x
  2. Step 2: Convert to fraction form
    5,348.28/7,380.77 = 2,990.42/x
  3. Step 3: Cross multiply
    5,348.28x = 7,380.77 × 2,990.42
  4. Step 4: Simplify right side
    5,348.28x = 22,071,594.87
  5. Step 5: Solve for x
    x = 22,071,594.87/5,348.28
  6. Step 6: Final answer
    x = 4,126.86

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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.