Home / 1,217.48-1,826.29-395.70

Finding the Fourth Proportional to 1,217.48, 1,826.29 and 395.70

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Solution

The fourth proportional to 1,217.48, 1,826.29 and 395.70 is: 593.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.48 : 1,826.29 = 395.70 : x
  2. Step 2: Convert to fraction form
    1,217.48/1,826.29 = 395.70/x
  3. Step 3: Cross multiply
    1,217.48x = 1,826.29 × 395.70
  4. Step 4: Simplify right side
    1,217.48x = 722,651.84
  5. Step 5: Solve for x
    x = 722,651.84/1,217.48
  6. Step 6: Final answer
    x = 593.56

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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.