Home / 3,853.31-5,317.62-2,261.05

Finding the Fourth Proportional to 3,853.31, 5,317.62 and 2,261.05

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Solution

The fourth proportional to 3,853.31, 5,317.62 and 2,261.05 is: 3,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.31 : 5,317.62 = 2,261.05 : x
  2. Step 2: Convert to fraction form
    3,853.31/5,317.62 = 2,261.05/x
  3. Step 3: Cross multiply
    3,853.31x = 5,317.62 × 2,261.05
  4. Step 4: Simplify right side
    3,853.31x = 12,023,382.93
  5. Step 5: Solve for x
    x = 12,023,382.93/3,853.31
  6. Step 6: Final answer
    x = 3,120.28

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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.