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Finding the Fourth Proportional to 3,652.66, 5,040.81 and 2,080.72

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Solution

The fourth proportional to 3,652.66, 5,040.81 and 2,080.72 is: 2,871.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.66 : 5,040.81 = 2,080.72 : x
  2. Step 2: Convert to fraction form
    3,652.66/5,040.81 = 2,080.72/x
  3. Step 3: Cross multiply
    3,652.66x = 5,040.81 × 2,080.72
  4. Step 4: Simplify right side
    3,652.66x = 10,488,514.18
  5. Step 5: Solve for x
    x = 10,488,514.18/3,652.66
  6. Step 6: Final answer
    x = 2,871.47

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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.