Home / 7,428.60-11,124.90-3,958.20

Finding the Fourth Proportional to 7,428.60, 11,124.90 and 3,958.20

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Solution

The fourth proportional to 7,428.60, 11,124.90 and 3,958.20 is: 5,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.60 : 11,124.90 = 3,958.20 : x
  2. Step 2: Convert to fraction form
    7,428.60/11,124.90 = 3,958.20/x
  3. Step 3: Cross multiply
    7,428.60x = 11,124.90 × 3,958.20
  4. Step 4: Simplify right side
    7,428.60x = 44,034,579.18
  5. Step 5: Solve for x
    x = 44,034,579.18/7,428.60
  6. Step 6: Final answer
    x = 5,927.71

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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.