Home / 3,440.68-5,159.44-1,881.21

Finding the Fourth Proportional to 3,440.68, 5,159.44 and 1,881.21

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Solution

The fourth proportional to 3,440.68, 5,159.44 and 1,881.21 is: 2,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.68 : 5,159.44 = 1,881.21 : x
  2. Step 2: Convert to fraction form
    3,440.68/5,159.44 = 1,881.21/x
  3. Step 3: Cross multiply
    3,440.68x = 5,159.44 × 1,881.21
  4. Step 4: Simplify right side
    3,440.68x = 9,705,990.12
  5. Step 5: Solve for x
    x = 9,705,990.12/3,440.68
  6. Step 6: Final answer
    x = 2,820.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.