Home / 2,945.28-4,417.92-1,214.04

Finding the Fourth Proportional to 2,945.28, 4,417.92 and 1,214.04

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Solution

The fourth proportional to 2,945.28, 4,417.92 and 1,214.04 is: 1,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.28 : 4,417.92 = 1,214.04 : x
  2. Step 2: Convert to fraction form
    2,945.28/4,417.92 = 1,214.04/x
  3. Step 3: Cross multiply
    2,945.28x = 4,417.92 × 1,214.04
  4. Step 4: Simplify right side
    2,945.28x = 5,363,531.60
  5. Step 5: Solve for x
    x = 5,363,531.60/2,945.28
  6. Step 6: Final answer
    x = 1,821.06

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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.