Home / 3,518.25-5,278.85-1,542.86

Finding the Fourth Proportional to 3,518.25, 5,278.85 and 1,542.86

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Solution

The fourth proportional to 3,518.25, 5,278.85 and 1,542.86 is: 2,314.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.25 : 5,278.85 = 1,542.86 : x
  2. Step 2: Convert to fraction form
    3,518.25/5,278.85 = 1,542.86/x
  3. Step 3: Cross multiply
    3,518.25x = 5,278.85 × 1,542.86
  4. Step 4: Simplify right side
    3,518.25x = 8,144,530.83
  5. Step 5: Solve for x
    x = 8,144,530.83/3,518.25
  6. Step 6: Final answer
    x = 2,314.94

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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.