Home / 1,217.32-1,826.25-351.70

Finding the Fourth Proportional to 1,217.32, 1,826.25 and 351.70

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Solution

The fourth proportional to 1,217.32, 1,826.25 and 351.70 is: 527.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.32 : 1,826.25 = 351.70 : x
  2. Step 2: Convert to fraction form
    1,217.32/1,826.25 = 351.70/x
  3. Step 3: Cross multiply
    1,217.32x = 1,826.25 × 351.70
  4. Step 4: Simplify right side
    1,217.32x = 642,292.13
  5. Step 5: Solve for x
    x = 642,292.13/1,217.32
  6. Step 6: Final answer
    x = 527.63

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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.