Home / 7,134.16-10,701.36-1,939.90

Finding the Fourth Proportional to 7,134.16, 10,701.36 and 1,939.90

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Solution

The fourth proportional to 7,134.16, 10,701.36 and 1,939.90 is: 2,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.16 : 10,701.36 = 1,939.90 : x
  2. Step 2: Convert to fraction form
    7,134.16/10,701.36 = 1,939.90/x
  3. Step 3: Cross multiply
    7,134.16x = 10,701.36 × 1,939.90
  4. Step 4: Simplify right side
    7,134.16x = 20,759,568.26
  5. Step 5: Solve for x
    x = 20,759,568.26/7,134.16
  6. Step 6: Final answer
    x = 2,909.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.