Home / 5,459.78-8,188.45-2,648.52

Finding the Fourth Proportional to 5,459.78, 8,188.45 and 2,648.52

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Solution

The fourth proportional to 5,459.78, 8,188.45 and 2,648.52 is: 3,972.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.78 : 8,188.45 = 2,648.52 : x
  2. Step 2: Convert to fraction form
    5,459.78/8,188.45 = 2,648.52/x
  3. Step 3: Cross multiply
    5,459.78x = 8,188.45 × 2,648.52
  4. Step 4: Simplify right side
    5,459.78x = 21,687,266.97
  5. Step 5: Solve for x
    x = 21,687,266.97/5,459.78
  6. Step 6: Final answer
    x = 3,972.19

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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.