Home / 3,387.31-5,079.09-1,046.65

Finding the Fourth Proportional to 3,387.31, 5,079.09 and 1,046.65

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Solution

The fourth proportional to 3,387.31, 5,079.09 and 1,046.65 is: 1,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.31 : 5,079.09 = 1,046.65 : x
  2. Step 2: Convert to fraction form
    3,387.31/5,079.09 = 1,046.65/x
  3. Step 3: Cross multiply
    3,387.31x = 5,079.09 × 1,046.65
  4. Step 4: Simplify right side
    3,387.31x = 5,316,029.55
  5. Step 5: Solve for x
    x = 5,316,029.55/3,387.31
  6. Step 6: Final answer
    x = 1,569.40

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1.5x scale

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.