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Finding the Fourth Proportional to 5,987.87, 8,987.34 and 3,028.40

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Solution

The fourth proportional to 5,987.87, 8,987.34 and 3,028.40 is: 4,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.87 : 8,987.34 = 3,028.40 : x
  2. Step 2: Convert to fraction form
    5,987.87/8,987.34 = 3,028.40/x
  3. Step 3: Cross multiply
    5,987.87x = 8,987.34 × 3,028.40
  4. Step 4: Simplify right side
    5,987.87x = 27,217,268.96
  5. Step 5: Solve for x
    x = 27,217,268.96/5,987.87
  6. Step 6: Final answer
    x = 4,545.40

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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.