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Finding the Fourth Proportional to 2,065.46, 3,098.46 and 766.76

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Solution

The fourth proportional to 2,065.46, 3,098.46 and 766.76 is: 1,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.46 : 3,098.46 = 766.76 : x
  2. Step 2: Convert to fraction form
    2,065.46/3,098.46 = 766.76/x
  3. Step 3: Cross multiply
    2,065.46x = 3,098.46 × 766.76
  4. Step 4: Simplify right side
    2,065.46x = 2,375,775.19
  5. Step 5: Solve for x
    x = 2,375,775.19/2,065.46
  6. Step 6: Final answer
    x = 1,150.24

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1.5x scale

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.