Home / 2,648.40-3,965.28-1,343.52

Finding the Fourth Proportional to 2,648.40, 3,965.28 and 1,343.52

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Solution

The fourth proportional to 2,648.40, 3,965.28 and 1,343.52 is: 2,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.40 : 3,965.28 = 1,343.52 : x
  2. Step 2: Convert to fraction form
    2,648.40/3,965.28 = 1,343.52/x
  3. Step 3: Cross multiply
    2,648.40x = 3,965.28 × 1,343.52
  4. Step 4: Simplify right side
    2,648.40x = 5,327,432.99
  5. Step 5: Solve for x
    x = 5,327,432.99/2,648.40
  6. Step 6: Final answer
    x = 2,011.57

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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.