Home / 2,551.60-3,827.76-1,253.12

Finding the Fourth Proportional to 2,551.60, 3,827.76 and 1,253.12

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Solution

The fourth proportional to 2,551.60, 3,827.76 and 1,253.12 is: 1,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.60 : 3,827.76 = 1,253.12 : x
  2. Step 2: Convert to fraction form
    2,551.60/3,827.76 = 1,253.12/x
  3. Step 3: Cross multiply
    2,551.60x = 3,827.76 × 1,253.12
  4. Step 4: Simplify right side
    2,551.60x = 4,796,642.61
  5. Step 5: Solve for x
    x = 4,796,642.61/2,551.60
  6. Step 6: Final answer
    x = 1,879.86

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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.