Home / 7,338.86-10,981-4,378.89

Finding the Fourth Proportional to 7,338.86, 10,981 and 4,378.89

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Solution

The fourth proportional to 7,338.86, 10,981 and 4,378.89 is: 6,552.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.86 : 10,981 = 4,378.89 : x
  2. Step 2: Convert to fraction form
    7,338.86/10,981 = 4,378.89/x
  3. Step 3: Cross multiply
    7,338.86x = 10,981 × 4,378.89
  4. Step 4: Simplify right side
    7,338.86x = 48,084,591.09
  5. Step 5: Solve for x
    x = 48,084,591.09/7,338.86
  6. Step 6: Final answer
    x = 6,552.05

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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.