Home / 3,679.08-5,076.20-2,085.76

Finding the Fourth Proportional to 3,679.08, 5,076.20 and 2,085.76

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Solution

The fourth proportional to 3,679.08, 5,076.20 and 2,085.76 is: 2,877.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.08 : 5,076.20 = 2,085.76 : x
  2. Step 2: Convert to fraction form
    3,679.08/5,076.20 = 2,085.76/x
  3. Step 3: Cross multiply
    3,679.08x = 5,076.20 × 2,085.76
  4. Step 4: Simplify right side
    3,679.08x = 10,587,734.91
  5. Step 5: Solve for x
    x = 10,587,734.91/3,679.08
  6. Step 6: Final answer
    x = 2,877.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.