Home / 7,159.46-9,877.82-4,134.20

Finding the Fourth Proportional to 7,159.46, 9,877.82 and 4,134.20

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Solution

The fourth proportional to 7,159.46, 9,877.82 and 4,134.20 is: 5,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.46 : 9,877.82 = 4,134.20 : x
  2. Step 2: Convert to fraction form
    7,159.46/9,877.82 = 4,134.20/x
  3. Step 3: Cross multiply
    7,159.46x = 9,877.82 × 4,134.20
  4. Step 4: Simplify right side
    7,159.46x = 40,836,844.39
  5. Step 5: Solve for x
    x = 40,836,844.39/7,159.46
  6. Step 6: Final answer
    x = 5,703.90

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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.