Home / 2,625.60-3,938.04-1,238.52

Finding the Fourth Proportional to 2,625.60, 3,938.04 and 1,238.52

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Solution

The fourth proportional to 2,625.60, 3,938.04 and 1,238.52 is: 1,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.60 : 3,938.04 = 1,238.52 : x
  2. Step 2: Convert to fraction form
    2,625.60/3,938.04 = 1,238.52/x
  3. Step 3: Cross multiply
    2,625.60x = 3,938.04 × 1,238.52
  4. Step 4: Simplify right side
    2,625.60x = 4,877,341.30
  5. Step 5: Solve for x
    x = 4,877,341.30/2,625.60
  6. Step 6: Final answer
    x = 1,857.61

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