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Finding the Fourth Proportional to 5,987.16, 8,978.40 and 2,288.16

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Solution

The fourth proportional to 5,987.16, 8,978.40 and 2,288.16 is: 3,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.16 : 8,978.40 = 2,288.16 : x
  2. Step 2: Convert to fraction form
    5,987.16/8,978.40 = 2,288.16/x
  3. Step 3: Cross multiply
    5,987.16x = 8,978.40 × 2,288.16
  4. Step 4: Simplify right side
    5,987.16x = 20,544,015.74
  5. Step 5: Solve for x
    x = 20,544,015.74/5,987.16
  6. Step 6: Final answer
    x = 3,431.35

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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.