Home / 5,348.13-7,380.28-2,990.28

Finding the Fourth Proportional to 5,348.13, 7,380.28 and 2,990.28

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Solution

The fourth proportional to 5,348.13, 7,380.28 and 2,990.28 is: 4,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.13 : 7,380.28 = 2,990.28 : x
  2. Step 2: Convert to fraction form
    5,348.13/7,380.28 = 2,990.28/x
  3. Step 3: Cross multiply
    5,348.13x = 7,380.28 × 2,990.28
  4. Step 4: Simplify right side
    5,348.13x = 22,069,103.68
  5. Step 5: Solve for x
    x = 22,069,103.68/5,348.13
  6. Step 6: Final answer
    x = 4,126.51

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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.