Home / 5,132.28-7,698.40-1,236.72

Finding the Fourth Proportional to 5,132.28, 7,698.40 and 1,236.72

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Solution

The fourth proportional to 5,132.28, 7,698.40 and 1,236.72 is: 1,855.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.28 : 7,698.40 = 1,236.72 : x
  2. Step 2: Convert to fraction form
    5,132.28/7,698.40 = 1,236.72/x
  3. Step 3: Cross multiply
    5,132.28x = 7,698.40 × 1,236.72
  4. Step 4: Simplify right side
    5,132.28x = 9,520,765.25
  5. Step 5: Solve for x
    x = 9,520,765.25/5,132.28
  6. Step 6: Final answer
    x = 1,855.08

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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.