Home / 3,511.74-5,268.40-1,869.86

Finding the Fourth Proportional to 3,511.74, 5,268.40 and 1,869.86

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Solution

The fourth proportional to 3,511.74, 5,268.40 and 1,869.86 is: 2,805.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.74 : 5,268.40 = 1,869.86 : x
  2. Step 2: Convert to fraction form
    3,511.74/5,268.40 = 1,869.86/x
  3. Step 3: Cross multiply
    3,511.74x = 5,268.40 × 1,869.86
  4. Step 4: Simplify right side
    3,511.74x = 9,851,170.42
  5. Step 5: Solve for x
    x = 9,851,170.42/3,511.74
  6. Step 6: Final answer
    x = 2,805.21

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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.