Home / 7,129.83-10,691.69-2,450.31

Finding the Fourth Proportional to 7,129.83, 10,691.69 and 2,450.31

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Solution

The fourth proportional to 7,129.83, 10,691.69 and 2,450.31 is: 3,674.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.83 : 10,691.69 = 2,450.31 : x
  2. Step 2: Convert to fraction form
    7,129.83/10,691.69 = 2,450.31/x
  3. Step 3: Cross multiply
    7,129.83x = 10,691.69 × 2,450.31
  4. Step 4: Simplify right side
    7,129.83x = 26,197,954.92
  5. Step 5: Solve for x
    x = 26,197,954.92/7,129.83
  6. Step 6: Final answer
    x = 3,674.42

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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.