Home / 3,101.44-4,280.32-1,842.88

Finding the Fourth Proportional to 3,101.44, 4,280.32 and 1,842.88

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Solution

The fourth proportional to 3,101.44, 4,280.32 and 1,842.88 is: 2,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.44 : 4,280.32 = 1,842.88 : x
  2. Step 2: Convert to fraction form
    3,101.44/4,280.32 = 1,842.88/x
  3. Step 3: Cross multiply
    3,101.44x = 4,280.32 × 1,842.88
  4. Step 4: Simplify right side
    3,101.44x = 7,888,116.12
  5. Step 5: Solve for x
    x = 7,888,116.12/3,101.44
  6. Step 6: Final answer
    x = 2,543.37

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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.