Home / 2,002.56-2,763.75-1,217.04

Finding the Fourth Proportional to 2,002.56, 2,763.75 and 1,217.04

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Solution

The fourth proportional to 2,002.56, 2,763.75 and 1,217.04 is: 1,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.56 : 2,763.75 = 1,217.04 : x
  2. Step 2: Convert to fraction form
    2,002.56/2,763.75 = 1,217.04/x
  3. Step 3: Cross multiply
    2,002.56x = 2,763.75 × 1,217.04
  4. Step 4: Simplify right side
    2,002.56x = 3,363,580.48
  5. Step 5: Solve for x
    x = 3,363,580.48/2,002.56
  6. Step 6: Final answer
    x = 1,679.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.