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Finding the Fourth Proportional to 5,074.68, 7,609.92 and 1,787.01

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Solution

The fourth proportional to 5,074.68, 7,609.92 and 1,787.01 is: 2,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.68 : 7,609.92 = 1,787.01 : x
  2. Step 2: Convert to fraction form
    5,074.68/7,609.92 = 1,787.01/x
  3. Step 3: Cross multiply
    5,074.68x = 7,609.92 × 1,787.01
  4. Step 4: Simplify right side
    5,074.68x = 13,599,003.14
  5. Step 5: Solve for x
    x = 13,599,003.14/5,074.68
  6. Step 6: Final answer
    x = 2,679.78

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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.