Home / 1,217.96-1,827.47-396.49

Finding the Fourth Proportional to 1,217.96, 1,827.47 and 396.49

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Solution

The fourth proportional to 1,217.96, 1,827.47 and 396.49 is: 594.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.96 : 1,827.47 = 396.49 : x
  2. Step 2: Convert to fraction form
    1,217.96/1,827.47 = 396.49/x
  3. Step 3: Cross multiply
    1,217.96x = 1,827.47 × 396.49
  4. Step 4: Simplify right side
    1,217.96x = 724,573.58
  5. Step 5: Solve for x
    x = 724,573.58/1,217.96
  6. Step 6: Final answer
    x = 594.91

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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.