Home / 3,432.78-5,148.16-1,788.48

Finding the Fourth Proportional to 3,432.78, 5,148.16 and 1,788.48

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Solution

The fourth proportional to 3,432.78, 5,148.16 and 1,788.48 is: 2,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.78 : 5,148.16 = 1,788.48 : x
  2. Step 2: Convert to fraction form
    3,432.78/5,148.16 = 1,788.48/x
  3. Step 3: Cross multiply
    3,432.78x = 5,148.16 × 1,788.48
  4. Step 4: Simplify right side
    3,432.78x = 9,207,376.73
  5. Step 5: Solve for x
    x = 9,207,376.73/3,432.78
  6. Step 6: Final answer
    x = 2,682.19

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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.