Home / 4,067.40-6,101.10-989.40

Finding the Fourth Proportional to 4,067.40, 6,101.10 and 989.40

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Solution

The fourth proportional to 4,067.40, 6,101.10 and 989.40 is: 1,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,067.40 : 6,101.10 = 989.40 : x
  2. Step 2: Convert to fraction form
    4,067.40/6,101.10 = 989.40/x
  3. Step 3: Cross multiply
    4,067.40x = 6,101.10 × 989.40
  4. Step 4: Simplify right side
    4,067.40x = 6,036,428.34
  5. Step 5: Solve for x
    x = 6,036,428.34/4,067.40
  6. Step 6: Final answer
    x = 1,484.10

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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.