Home / 2,182.90-3,013.28-1,298.53

Finding the Fourth Proportional to 2,182.90, 3,013.28 and 1,298.53

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Solution

The fourth proportional to 2,182.90, 3,013.28 and 1,298.53 is: 1,792.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.90 : 3,013.28 = 1,298.53 : x
  2. Step 2: Convert to fraction form
    2,182.90/3,013.28 = 1,298.53/x
  3. Step 3: Cross multiply
    2,182.90x = 3,013.28 × 1,298.53
  4. Step 4: Simplify right side
    2,182.90x = 3,912,832.97
  5. Step 5: Solve for x
    x = 3,912,832.97/2,182.90
  6. Step 6: Final answer
    x = 1,792.49

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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.