Home / 2,981.28-4,471.56-1,521.48

Finding the Fourth Proportional to 2,981.28, 4,471.56 and 1,521.48

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Solution

The fourth proportional to 2,981.28, 4,471.56 and 1,521.48 is: 2,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.28 : 4,471.56 = 1,521.48 : x
  2. Step 2: Convert to fraction form
    2,981.28/4,471.56 = 1,521.48/x
  3. Step 3: Cross multiply
    2,981.28x = 4,471.56 × 1,521.48
  4. Step 4: Simplify right side
    2,981.28x = 6,803,389.11
  5. Step 5: Solve for x
    x = 6,803,389.11/2,981.28
  6. Step 6: Final answer
    x = 2,282.04

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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.