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Finding the Fourth Proportional to 5,324.68, 7,981.98 and 1,859.68

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Solution

The fourth proportional to 5,324.68, 7,981.98 and 1,859.68 is: 2,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.68 : 7,981.98 = 1,859.68 : x
  2. Step 2: Convert to fraction form
    5,324.68/7,981.98 = 1,859.68/x
  3. Step 3: Cross multiply
    5,324.68x = 7,981.98 × 1,859.68
  4. Step 4: Simplify right side
    5,324.68x = 14,843,928.57
  5. Step 5: Solve for x
    x = 14,843,928.57/5,324.68
  6. Step 6: Final answer
    x = 2,787.76

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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.