Home / 7,421.92-11,132.84-3,039.38

Finding the Fourth Proportional to 7,421.92, 11,132.84 and 3,039.38

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Solution

The fourth proportional to 7,421.92, 11,132.84 and 3,039.38 is: 4,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.92 : 11,132.84 = 3,039.38 : x
  2. Step 2: Convert to fraction form
    7,421.92/11,132.84 = 3,039.38/x
  3. Step 3: Cross multiply
    7,421.92x = 11,132.84 × 3,039.38
  4. Step 4: Simplify right side
    7,421.92x = 33,836,931.24
  5. Step 5: Solve for x
    x = 33,836,931.24/7,421.92
  6. Step 6: Final answer
    x = 4,559.05

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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.