Home / 1,711.88-2,363.52-1,318.28

Finding the Fourth Proportional to 1,711.88, 2,363.52 and 1,318.28

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Solution

The fourth proportional to 1,711.88, 2,363.52 and 1,318.28 is: 1,820.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.88 : 2,363.52 = 1,318.28 : x
  2. Step 2: Convert to fraction form
    1,711.88/2,363.52 = 1,318.28/x
  3. Step 3: Cross multiply
    1,711.88x = 2,363.52 × 1,318.28
  4. Step 4: Simplify right side
    1,711.88x = 3,115,781.15
  5. Step 5: Solve for x
    x = 3,115,781.15/1,711.88
  6. Step 6: Final answer
    x = 1,820.09

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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.