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Finding the Fourth Proportional to 5,987.81, 8,982.32 and 2,291.78

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Solution

The fourth proportional to 5,987.81, 8,982.32 and 2,291.78 is: 3,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.81 : 8,982.32 = 2,291.78 : x
  2. Step 2: Convert to fraction form
    5,987.81/8,982.32 = 2,291.78/x
  3. Step 3: Cross multiply
    5,987.81x = 8,982.32 × 2,291.78
  4. Step 4: Simplify right side
    5,987.81x = 20,585,444.96
  5. Step 5: Solve for x
    x = 20,585,444.96/5,987.81
  6. Step 6: Final answer
    x = 3,437.90

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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.