Home / 10,642.32-15,961.92-2,851.68

Finding the Fourth Proportional to 10,642.32, 15,961.92 and 2,851.68

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Solution

The fourth proportional to 10,642.32, 15,961.92 and 2,851.68 is: 4,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.32 : 15,961.92 = 2,851.68 : x
  2. Step 2: Convert to fraction form
    10,642.32/15,961.92 = 2,851.68/x
  3. Step 3: Cross multiply
    10,642.32x = 15,961.92 × 2,851.68
  4. Step 4: Simplify right side
    10,642.32x = 45,518,288.03
  5. Step 5: Solve for x
    x = 45,518,288.03/10,642.32
  6. Step 6: Final answer
    x = 4,277.10

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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.