Home / 7,134.21-9,844.88-3,947.49

Finding the Fourth Proportional to 7,134.21, 9,844.88 and 3,947.49

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Solution

The fourth proportional to 7,134.21, 9,844.88 and 3,947.49 is: 5,447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.21 : 9,844.88 = 3,947.49 : x
  2. Step 2: Convert to fraction form
    7,134.21/9,844.88 = 3,947.49/x
  3. Step 3: Cross multiply
    7,134.21x = 9,844.88 × 3,947.49
  4. Step 4: Simplify right side
    7,134.21x = 38,862,545.61
  5. Step 5: Solve for x
    x = 38,862,545.61/7,134.21
  6. Step 6: Final answer
    x = 5,447.35

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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.