Home / 3,679.78-5,514.40-2,854.19

Finding the Fourth Proportional to 3,679.78, 5,514.40 and 2,854.19

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Solution

The fourth proportional to 3,679.78, 5,514.40 and 2,854.19 is: 4,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.78 : 5,514.40 = 2,854.19 : x
  2. Step 2: Convert to fraction form
    3,679.78/5,514.40 = 2,854.19/x
  3. Step 3: Cross multiply
    3,679.78x = 5,514.40 × 2,854.19
  4. Step 4: Simplify right side
    3,679.78x = 15,739,145.34
  5. Step 5: Solve for x
    x = 15,739,145.34/3,679.78
  6. Step 6: Final answer
    x = 4,277.20

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1.5x scale

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.