Home / 2,551.19-3,827.07-2,139.30

Finding the Fourth Proportional to 2,551.19, 3,827.07 and 2,139.30

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Solution

The fourth proportional to 2,551.19, 3,827.07 and 2,139.30 is: 3,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.19 : 3,827.07 = 2,139.30 : x
  2. Step 2: Convert to fraction form
    2,551.19/3,827.07 = 2,139.30/x
  3. Step 3: Cross multiply
    2,551.19x = 3,827.07 × 2,139.30
  4. Step 4: Simplify right side
    2,551.19x = 8,187,250.85
  5. Step 5: Solve for x
    x = 8,187,250.85/2,551.19
  6. Step 6: Final answer
    x = 3,209.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.