Home / 7,428.87-10,251.84-4,071.62

Finding the Fourth Proportional to 7,428.87, 10,251.84 and 4,071.62

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Solution

The fourth proportional to 7,428.87, 10,251.84 and 4,071.62 is: 5,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.87 : 10,251.84 = 4,071.62 : x
  2. Step 2: Convert to fraction form
    7,428.87/10,251.84 = 4,071.62/x
  3. Step 3: Cross multiply
    7,428.87x = 10,251.84 × 4,071.62
  4. Step 4: Simplify right side
    7,428.87x = 41,741,545.52
  5. Step 5: Solve for x
    x = 41,741,545.52/7,428.87
  6. Step 6: Final answer
    x = 5,618.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.