Home / 3,862.79-5,330.87-2,183.58

Finding the Fourth Proportional to 3,862.79, 5,330.87 and 2,183.58

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Solution

The fourth proportional to 3,862.79, 5,330.87 and 2,183.58 is: 3,013.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.79 : 5,330.87 = 2,183.58 : x
  2. Step 2: Convert to fraction form
    3,862.79/5,330.87 = 2,183.58/x
  3. Step 3: Cross multiply
    3,862.79x = 5,330.87 × 2,183.58
  4. Step 4: Simplify right side
    3,862.79x = 11,640,394.91
  5. Step 5: Solve for x
    x = 11,640,394.91/3,862.79
  6. Step 6: Final answer
    x = 3,013.47

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1.5x scale

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.