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Finding the Fourth Proportional to 3,652.12, 5,040.12 and 2,080.72

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Solution

The fourth proportional to 3,652.12, 5,040.12 and 2,080.72 is: 2,871.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.12 : 5,040.12 = 2,080.72 : x
  2. Step 2: Convert to fraction form
    3,652.12/5,040.12 = 2,080.72/x
  3. Step 3: Cross multiply
    3,652.12x = 5,040.12 × 2,080.72
  4. Step 4: Simplify right side
    3,652.12x = 10,487,078.49
  5. Step 5: Solve for x
    x = 10,487,078.49/3,652.12
  6. Step 6: Final answer
    x = 2,871.50

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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.