Home / 7,935.80-11,899.85-2,388.11

Finding the Fourth Proportional to 7,935.80, 11,899.85 and 2,388.11

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Solution

The fourth proportional to 7,935.80, 11,899.85 and 2,388.11 is: 3,581.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.80 : 11,899.85 = 2,388.11 : x
  2. Step 2: Convert to fraction form
    7,935.80/11,899.85 = 2,388.11/x
  3. Step 3: Cross multiply
    7,935.80x = 11,899.85 × 2,388.11
  4. Step 4: Simplify right side
    7,935.80x = 28,418,150.78
  5. Step 5: Solve for x
    x = 28,418,150.78/7,935.80
  6. Step 6: Final answer
    x = 3,581.01

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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.