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Finding the Fourth Proportional to 5,987.90, 8,969.60 and 4,881.26

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Solution

The fourth proportional to 5,987.90, 8,969.60 and 4,881.26 is: 7,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.90 : 8,969.60 = 4,881.26 : x
  2. Step 2: Convert to fraction form
    5,987.90/8,969.60 = 4,881.26/x
  3. Step 3: Cross multiply
    5,987.90x = 8,969.60 × 4,881.26
  4. Step 4: Simplify right side
    5,987.90x = 43,782,949.70
  5. Step 5: Solve for x
    x = 43,782,949.70/5,987.90
  6. Step 6: Final answer
    x = 7,311.90

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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.