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Finding the Fourth Proportional to 5,678.58, 8,505.56 and 2,750.76

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Solution

The fourth proportional to 5,678.58, 8,505.56 and 2,750.76 is: 4,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.58 : 8,505.56 = 2,750.76 : x
  2. Step 2: Convert to fraction form
    5,678.58/8,505.56 = 2,750.76/x
  3. Step 3: Cross multiply
    5,678.58x = 8,505.56 × 2,750.76
  4. Step 4: Simplify right side
    5,678.58x = 23,396,754.23
  5. Step 5: Solve for x
    x = 23,396,754.23/5,678.58
  6. Step 6: Final answer
    x = 4,120.18

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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.