Home / 3,901.80-5,382.98-2,407.13

Finding the Fourth Proportional to 3,901.80, 5,382.98 and 2,407.13

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Solution

The fourth proportional to 3,901.80, 5,382.98 and 2,407.13 is: 3,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.80 : 5,382.98 = 2,407.13 : x
  2. Step 2: Convert to fraction form
    3,901.80/5,382.98 = 2,407.13/x
  3. Step 3: Cross multiply
    3,901.80x = 5,382.98 × 2,407.13
  4. Step 4: Simplify right side
    3,901.80x = 12,957,532.65
  5. Step 5: Solve for x
    x = 12,957,532.65/3,901.80
  6. Step 6: Final answer
    x = 3,320.91

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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.