Home / 7,932.39-11,898.81-2,385.87

Finding the Fourth Proportional to 7,932.39, 11,898.81 and 2,385.87

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Solution

The fourth proportional to 7,932.39, 11,898.81 and 2,385.87 is: 3,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932.39 : 11,898.81 = 2,385.87 : x
  2. Step 2: Convert to fraction form
    7,932.39/11,898.81 = 2,385.87/x
  3. Step 3: Cross multiply
    7,932.39x = 11,898.81 × 2,385.87
  4. Step 4: Simplify right side
    7,932.39x = 28,389,013.81
  5. Step 5: Solve for x
    x = 28,389,013.81/7,932.39
  6. Step 6: Final answer
    x = 3,578.87

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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.