Home / 3,900.25-5,382.35-2,503.00

Finding the Fourth Proportional to 3,900.25, 5,382.35 and 2,503.00

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Solution

The fourth proportional to 3,900.25, 5,382.35 and 2,503.00 is: 3,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.25 : 5,382.35 = 2,503.00 : x
  2. Step 2: Convert to fraction form
    3,900.25/5,382.35 = 2,503.00/x
  3. Step 3: Cross multiply
    3,900.25x = 5,382.35 × 2,503.00
  4. Step 4: Simplify right side
    3,900.25x = 13,472,025.65
  5. Step 5: Solve for x
    x = 13,472,025.65/3,900.25
  6. Step 6: Final answer
    x = 3,454.14

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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.