Home / 6,974.87-10,458.20-2,811.47

Finding the Fourth Proportional to 6,974.87, 10,458.20 and 2,811.47

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Solution

The fourth proportional to 6,974.87, 10,458.20 and 2,811.47 is: 4,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,974.87 : 10,458.20 = 2,811.47 : x
  2. Step 2: Convert to fraction form
    6,974.87/10,458.20 = 2,811.47/x
  3. Step 3: Cross multiply
    6,974.87x = 10,458.20 × 2,811.47
  4. Step 4: Simplify right side
    6,974.87x = 29,402,870.29
  5. Step 5: Solve for x
    x = 29,402,870.29/6,974.87
  6. Step 6: Final answer
    x = 4,215.55

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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.