Home / 3,901.18-5,382.90-2,199.18

Finding the Fourth Proportional to 3,901.18, 5,382.90 and 2,199.18

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Solution

The fourth proportional to 3,901.18, 5,382.90 and 2,199.18 is: 3,034.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.18 : 5,382.90 = 2,199.18 : x
  2. Step 2: Convert to fraction form
    3,901.18/5,382.90 = 2,199.18/x
  3. Step 3: Cross multiply
    3,901.18x = 5,382.90 × 2,199.18
  4. Step 4: Simplify right side
    3,901.18x = 11,837,966.02
  5. Step 5: Solve for x
    x = 11,837,966.02/3,901.18
  6. Step 6: Final answer
    x = 3,034.46

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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.