Home / 5,348.29-7,380.66-2,990.47

Finding the Fourth Proportional to 5,348.29, 7,380.66 and 2,990.47

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Solution

The fourth proportional to 5,348.29, 7,380.66 and 2,990.47 is: 4,126.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.29 : 7,380.66 = 2,990.47 : x
  2. Step 2: Convert to fraction form
    5,348.29/7,380.66 = 2,990.47/x
  3. Step 3: Cross multiply
    5,348.29x = 7,380.66 × 2,990.47
  4. Step 4: Simplify right side
    5,348.29x = 22,071,642.31
  5. Step 5: Solve for x
    x = 22,071,642.31/5,348.29
  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.