Home / 3,948.76-5,449.44-2,180.32

Finding the Fourth Proportional to 3,948.76, 5,449.44 and 2,180.32

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Solution

The fourth proportional to 3,948.76, 5,449.44 and 2,180.32 is: 3,008.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.76 : 5,449.44 = 2,180.32 : x
  2. Step 2: Convert to fraction form
    3,948.76/5,449.44 = 2,180.32/x
  3. Step 3: Cross multiply
    3,948.76x = 5,449.44 × 2,180.32
  4. Step 4: Simplify right side
    3,948.76x = 11,881,523.02
  5. Step 5: Solve for x
    x = 11,881,523.02/3,948.76
  6. Step 6: Final answer
    x = 3,008.93

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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.