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Finding the Fourth Proportional to 4,067.32, 6,100.98 and 989.32

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Solution

The fourth proportional to 4,067.32, 6,100.98 and 989.32 is: 1,483.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,067.32 : 6,100.98 = 989.32 : x
  2. Step 2: Convert to fraction form
    4,067.32/6,100.98 = 989.32/x
  3. Step 3: Cross multiply
    4,067.32x = 6,100.98 × 989.32
  4. Step 4: Simplify right side
    4,067.32x = 6,035,821.53
  5. Step 5: Solve for x
    x = 6,035,821.53/4,067.32
  6. Step 6: Final answer
    x = 1,483.98

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Double scale
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Similar ratio
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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.