Home / 6,140.17-8,480.31-4,147.25

Finding the Fourth Proportional to 6,140.17, 8,480.31 and 4,147.25

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Solution

The fourth proportional to 6,140.17, 8,480.31 and 4,147.25 is: 5,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.17 : 8,480.31 = 4,147.25 : x
  2. Step 2: Convert to fraction form
    6,140.17/8,480.31 = 4,147.25/x
  3. Step 3: Cross multiply
    6,140.17x = 8,480.31 × 4,147.25
  4. Step 4: Simplify right side
    6,140.17x = 35,169,965.65
  5. Step 5: Solve for x
    x = 35,169,965.65/6,140.17
  6. Step 6: Final answer
    x = 5,727.85

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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.