Home / 2,881.17-4,321.76-1,909.17

Finding the Fourth Proportional to 2,881.17, 4,321.76 and 1,909.17

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Solution

The fourth proportional to 2,881.17, 4,321.76 and 1,909.17 is: 2,863.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.17 : 4,321.76 = 1,909.17 : x
  2. Step 2: Convert to fraction form
    2,881.17/4,321.76 = 1,909.17/x
  3. Step 3: Cross multiply
    2,881.17x = 4,321.76 × 1,909.17
  4. Step 4: Simplify right side
    2,881.17x = 8,250,964.99
  5. Step 5: Solve for x
    x = 8,250,964.99/2,881.17
  6. Step 6: Final answer
    x = 2,863.76

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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.