Home / 7,672.11-11,502.28-2,991.42

Finding the Fourth Proportional to 7,672.11, 11,502.28 and 2,991.42

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Solution

The fourth proportional to 7,672.11, 11,502.28 and 2,991.42 is: 4,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.11 : 11,502.28 = 2,991.42 : x
  2. Step 2: Convert to fraction form
    7,672.11/11,502.28 = 2,991.42/x
  3. Step 3: Cross multiply
    7,672.11x = 11,502.28 × 2,991.42
  4. Step 4: Simplify right side
    7,672.11x = 34,408,150.44
  5. Step 5: Solve for x
    x = 34,408,150.44/7,672.11
  6. Step 6: Final answer
    x = 4,484.84

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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.