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Finding the Fourth Proportional to 5,987.64, 8,985.24 and 2,290.20

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Solution

The fourth proportional to 5,987.64, 8,985.24 and 2,290.20 is: 3,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.64 : 8,985.24 = 2,290.20 : x
  2. Step 2: Convert to fraction form
    5,987.64/8,985.24 = 2,290.20/x
  3. Step 3: Cross multiply
    5,987.64x = 8,985.24 × 2,290.20
  4. Step 4: Simplify right side
    5,987.64x = 20,577,996.65
  5. Step 5: Solve for x
    x = 20,577,996.65/5,987.64
  6. Step 6: Final answer
    x = 3,436.75

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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.