Home / 3,115.27-4,672.87-924.02

Finding the Fourth Proportional to 3,115.27, 4,672.87 and 924.02

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Solution

The fourth proportional to 3,115.27, 4,672.87 and 924.02 is: 1,386.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.27 : 4,672.87 = 924.02 : x
  2. Step 2: Convert to fraction form
    3,115.27/4,672.87 = 924.02/x
  3. Step 3: Cross multiply
    3,115.27x = 4,672.87 × 924.02
  4. Step 4: Simplify right side
    3,115.27x = 4,317,799.66
  5. Step 5: Solve for x
    x = 4,317,799.66/3,115.27
  6. Step 6: Final answer
    x = 1,386.01

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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.