Home / 6,140.61-8,471.49-3,621.71

Finding the Fourth Proportional to 6,140.61, 8,471.49 and 3,621.71

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Solution

The fourth proportional to 6,140.61, 8,471.49 and 3,621.71 is: 4,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.61 : 8,471.49 = 3,621.71 : x
  2. Step 2: Convert to fraction form
    6,140.61/8,471.49 = 3,621.71/x
  3. Step 3: Cross multiply
    6,140.61x = 8,471.49 × 3,621.71
  4. Step 4: Simplify right side
    6,140.61x = 30,681,287.65
  5. Step 5: Solve for x
    x = 30,681,287.65/6,140.61
  6. Step 6: Final answer
    x = 4,996.46

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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.