Home / 3,865.44-5,331.66-2,685.66

Finding the Fourth Proportional to 3,865.44, 5,331.66 and 2,685.66

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Solution

The fourth proportional to 3,865.44, 5,331.66 and 2,685.66 is: 3,704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.44 : 5,331.66 = 2,685.66 : x
  2. Step 2: Convert to fraction form
    3,865.44/5,331.66 = 2,685.66/x
  3. Step 3: Cross multiply
    3,865.44x = 5,331.66 × 2,685.66
  4. Step 4: Simplify right side
    3,865.44x = 14,319,026.00
  5. Step 5: Solve for x
    x = 14,319,026.00/3,865.44
  6. Step 6: Final answer
    x = 3,704.37

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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.