Home / 1,217.88-1,827.08-396.18

Finding the Fourth Proportional to 1,217.88, 1,827.08 and 396.18

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Solution

The fourth proportional to 1,217.88, 1,827.08 and 396.18 is: 594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.88 : 1,827.08 = 396.18 : x
  2. Step 2: Convert to fraction form
    1,217.88/1,827.08 = 396.18/x
  3. Step 3: Cross multiply
    1,217.88x = 1,827.08 × 396.18
  4. Step 4: Simplify right side
    1,217.88x = 723,850.57
  5. Step 5: Solve for x
    x = 723,850.57/1,217.88
  6. Step 6: Final answer
    x = 594.35

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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.