Home / 3,315.27-4,972.28-1,340.38

Finding the Fourth Proportional to 3,315.27, 4,972.28 and 1,340.38

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Solution

The fourth proportional to 3,315.27, 4,972.28 and 1,340.38 is: 2,010.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.27 : 4,972.28 = 1,340.38 : x
  2. Step 2: Convert to fraction form
    3,315.27/4,972.28 = 1,340.38/x
  3. Step 3: Cross multiply
    3,315.27x = 4,972.28 × 1,340.38
  4. Step 4: Simplify right side
    3,315.27x = 6,664,744.67
  5. Step 5: Solve for x
    x = 6,664,744.67/3,315.27
  6. Step 6: Final answer
    x = 2,010.32

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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.