Home / 2,658.12-3,985.25-1,252.05

Finding the Fourth Proportional to 2,658.12, 3,985.25 and 1,252.05

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Solution

The fourth proportional to 2,658.12, 3,985.25 and 1,252.05 is: 1,877.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.12 : 3,985.25 = 1,252.05 : x
  2. Step 2: Convert to fraction form
    2,658.12/3,985.25 = 1,252.05/x
  3. Step 3: Cross multiply
    2,658.12x = 3,985.25 × 1,252.05
  4. Step 4: Simplify right side
    2,658.12x = 4,989,726.00
  5. Step 5: Solve for x
    x = 4,989,726.00/2,658.12
  6. Step 6: Final answer
    x = 1,877.16

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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.