Home / 3,867.80-5,337.56-2,099.41

Finding the Fourth Proportional to 3,867.80, 5,337.56 and 2,099.41

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Solution

The fourth proportional to 3,867.80, 5,337.56 and 2,099.41 is: 2,897.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.80 : 5,337.56 = 2,099.41 : x
  2. Step 2: Convert to fraction form
    3,867.80/5,337.56 = 2,099.41/x
  3. Step 3: Cross multiply
    3,867.80x = 5,337.56 × 2,099.41
  4. Step 4: Simplify right side
    3,867.80x = 11,205,718.74
  5. Step 5: Solve for x
    x = 11,205,718.74/3,867.80
  6. Step 6: Final answer
    x = 2,897.19

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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.