Home / 3,724.30-5,139.33-2,045.65

Finding the Fourth Proportional to 3,724.30, 5,139.33 and 2,045.65

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Solution

The fourth proportional to 3,724.30, 5,139.33 and 2,045.65 is: 2,822.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.30 : 5,139.33 = 2,045.65 : x
  2. Step 2: Convert to fraction form
    3,724.30/5,139.33 = 2,045.65/x
  3. Step 3: Cross multiply
    3,724.30x = 5,139.33 × 2,045.65
  4. Step 4: Simplify right side
    3,724.30x = 10,513,270.41
  5. Step 5: Solve for x
    x = 10,513,270.41/3,724.30
  6. Step 6: Final answer
    x = 2,822.88

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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.