Home / 7,938.86-11,908.35-3,007.17

Finding the Fourth Proportional to 7,938.86, 11,908.35 and 3,007.17

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Solution

The fourth proportional to 7,938.86, 11,908.35 and 3,007.17 is: 4,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.86 : 11,908.35 = 3,007.17 : x
  2. Step 2: Convert to fraction form
    7,938.86/11,908.35 = 3,007.17/x
  3. Step 3: Cross multiply
    7,938.86x = 11,908.35 × 3,007.17
  4. Step 4: Simplify right side
    7,938.86x = 35,810,432.87
  5. Step 5: Solve for x
    x = 35,810,432.87/7,938.86
  6. Step 6: Final answer
    x = 4,510.78

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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.