Home / 2,543.60-3,809.64-1,515.44

Finding the Fourth Proportional to 2,543.60, 3,809.64 and 1,515.44

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Solution

The fourth proportional to 2,543.60, 3,809.64 and 1,515.44 is: 2,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.60 : 3,809.64 = 1,515.44 : x
  2. Step 2: Convert to fraction form
    2,543.60/3,809.64 = 1,515.44/x
  3. Step 3: Cross multiply
    2,543.60x = 3,809.64 × 1,515.44
  4. Step 4: Simplify right side
    2,543.60x = 5,773,280.84
  5. Step 5: Solve for x
    x = 5,773,280.84/2,543.60
  6. Step 6: Final answer
    x = 2,269.73

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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.