Home / 1,214.96-1,824.78-1,079.18

Finding the Fourth Proportional to 1,214.96, 1,824.78 and 1,079.18

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Solution

The fourth proportional to 1,214.96, 1,824.78 and 1,079.18 is: 1,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.96 : 1,824.78 = 1,079.18 : x
  2. Step 2: Convert to fraction form
    1,214.96/1,824.78 = 1,079.18/x
  3. Step 3: Cross multiply
    1,214.96x = 1,824.78 × 1,079.18
  4. Step 4: Simplify right side
    1,214.96x = 1,969,266.08
  5. Step 5: Solve for x
    x = 1,969,266.08/1,214.96
  6. Step 6: Final answer
    x = 1,620.85

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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.