Home / 3,102.35-4,284.96-2,261.71

Finding the Fourth Proportional to 3,102.35, 4,284.96 and 2,261.71

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Solution

The fourth proportional to 3,102.35, 4,284.96 and 2,261.71 is: 3,123.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.35 : 4,284.96 = 2,261.71 : x
  2. Step 2: Convert to fraction form
    3,102.35/4,284.96 = 2,261.71/x
  3. Step 3: Cross multiply
    3,102.35x = 4,284.96 × 2,261.71
  4. Step 4: Simplify right side
    3,102.35x = 9,691,326.17
  5. Step 5: Solve for x
    x = 9,691,326.17/3,102.35
  6. Step 6: Final answer
    x = 3,123.86

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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.