Home / 7,044.46-9,721.32-3,900.64

Finding the Fourth Proportional to 7,044.46, 9,721.32 and 3,900.64

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Solution

The fourth proportional to 7,044.46, 9,721.32 and 3,900.64 is: 5,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044.46 : 9,721.32 = 3,900.64 : x
  2. Step 2: Convert to fraction form
    7,044.46/9,721.32 = 3,900.64/x
  3. Step 3: Cross multiply
    7,044.46x = 9,721.32 × 3,900.64
  4. Step 4: Simplify right side
    7,044.46x = 37,919,369.64
  5. Step 5: Solve for x
    x = 37,919,369.64/7,044.46
  6. Step 6: Final answer
    x = 5,382.86

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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.