Home / 3,142.30-4,336.86-2,261.02

Finding the Fourth Proportional to 3,142.30, 4,336.86 and 2,261.02

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Solution

The fourth proportional to 3,142.30, 4,336.86 and 2,261.02 is: 3,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.30 : 4,336.86 = 2,261.02 : x
  2. Step 2: Convert to fraction form
    3,142.30/4,336.86 = 2,261.02/x
  3. Step 3: Cross multiply
    3,142.30x = 4,336.86 × 2,261.02
  4. Step 4: Simplify right side
    3,142.30x = 9,805,727.20
  5. Step 5: Solve for x
    x = 9,805,727.20/3,142.30
  6. Step 6: Final answer
    x = 3,120.56

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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.