Home / 1,217.54-1,826.57-395.90

Finding the Fourth Proportional to 1,217.54, 1,826.57 and 395.90

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Solution

The fourth proportional to 1,217.54, 1,826.57 and 395.90 is: 593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.54 : 1,826.57 = 395.90 : x
  2. Step 2: Convert to fraction form
    1,217.54/1,826.57 = 395.90/x
  3. Step 3: Cross multiply
    1,217.54x = 1,826.57 × 395.90
  4. Step 4: Simplify right side
    1,217.54x = 723,129.93
  5. Step 5: Solve for x
    x = 723,129.93/1,217.54
  6. Step 6: Final answer
    x = 593.93

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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.