Home / 2,679.06-4,018.80-924.90

Finding the Fourth Proportional to 2,679.06, 4,018.80 and 924.90

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Solution

The fourth proportional to 2,679.06, 4,018.80 and 924.90 is: 1,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.06 : 4,018.80 = 924.90 : x
  2. Step 2: Convert to fraction form
    2,679.06/4,018.80 = 924.90/x
  3. Step 3: Cross multiply
    2,679.06x = 4,018.80 × 924.90
  4. Step 4: Simplify right side
    2,679.06x = 3,716,988.12
  5. Step 5: Solve for x
    x = 3,716,988.12/2,679.06
  6. Step 6: Final answer
    x = 1,387.42

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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.