Home / 3,869.53-5,339.97-2,101.14

Finding the Fourth Proportional to 3,869.53, 5,339.97 and 2,101.14

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Solution

The fourth proportional to 3,869.53, 5,339.97 and 2,101.14 is: 2,899.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.53 : 5,339.97 = 2,101.14 : x
  2. Step 2: Convert to fraction form
    3,869.53/5,339.97 = 2,101.14/x
  3. Step 3: Cross multiply
    3,869.53x = 5,339.97 × 2,101.14
  4. Step 4: Simplify right side
    3,869.53x = 11,220,024.57
  5. Step 5: Solve for x
    x = 11,220,024.57/3,869.53
  6. Step 6: Final answer
    x = 2,899.59

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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.