Home / 2,561.12-3,838.44-1,098.53

Finding the Fourth Proportional to 2,561.12, 3,838.44 and 1,098.53

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Solution

The fourth proportional to 2,561.12, 3,838.44 and 1,098.53 is: 1,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.12 : 3,838.44 = 1,098.53 : x
  2. Step 2: Convert to fraction form
    2,561.12/3,838.44 = 1,098.53/x
  3. Step 3: Cross multiply
    2,561.12x = 3,838.44 × 1,098.53
  4. Step 4: Simplify right side
    2,561.12x = 4,216,641.49
  5. Step 5: Solve for x
    x = 4,216,641.49/2,561.12
  6. Step 6: Final answer
    x = 1,646.41

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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.