Home / 2,052.12-3,077.87-753.29

Finding the Fourth Proportional to 2,052.12, 3,077.87 and 753.29

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Solution

The fourth proportional to 2,052.12, 3,077.87 and 753.29 is: 1,129.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.12 : 3,077.87 = 753.29 : x
  2. Step 2: Convert to fraction form
    2,052.12/3,077.87 = 753.29/x
  3. Step 3: Cross multiply
    2,052.12x = 3,077.87 × 753.29
  4. Step 4: Simplify right side
    2,052.12x = 2,318,509.54
  5. Step 5: Solve for x
    x = 2,318,509.54/2,052.12
  6. Step 6: Final answer
    x = 1,129.81

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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.