Home / 7,134.18-9,844.71-3,947.40

Finding the Fourth Proportional to 7,134.18, 9,844.71 and 3,947.40

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Solution

The fourth proportional to 7,134.18, 9,844.71 and 3,947.40 is: 5,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.18 : 9,844.71 = 3,947.40 : x
  2. Step 2: Convert to fraction form
    7,134.18/9,844.71 = 3,947.40/x
  3. Step 3: Cross multiply
    7,134.18x = 9,844.71 × 3,947.40
  4. Step 4: Simplify right side
    7,134.18x = 38,861,008.25
  5. Step 5: Solve for x
    x = 38,861,008.25/7,134.18
  6. Step 6: Final answer
    x = 5,447.16

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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.