Home / 3,291.40-4,933.98-1,098.57

Finding the Fourth Proportional to 3,291.40, 4,933.98 and 1,098.57

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Solution

The fourth proportional to 3,291.40, 4,933.98 and 1,098.57 is: 1,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.40 : 4,933.98 = 1,098.57 : x
  2. Step 2: Convert to fraction form
    3,291.40/4,933.98 = 1,098.57/x
  3. Step 3: Cross multiply
    3,291.40x = 4,933.98 × 1,098.57
  4. Step 4: Simplify right side
    3,291.40x = 5,420,340.91
  5. Step 5: Solve for x
    x = 5,420,340.91/3,291.40
  6. Step 6: Final answer
    x = 1,646.82

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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.