Home / 7,721.66-10,644.09-4,731.95

Finding the Fourth Proportional to 7,721.66, 10,644.09 and 4,731.95

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Solution

The fourth proportional to 7,721.66, 10,644.09 and 4,731.95 is: 6,522.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.66 : 10,644.09 = 4,731.95 : x
  2. Step 2: Convert to fraction form
    7,721.66/10,644.09 = 4,731.95/x
  3. Step 3: Cross multiply
    7,721.66x = 10,644.09 × 4,731.95
  4. Step 4: Simplify right side
    7,721.66x = 50,367,286.90
  5. Step 5: Solve for x
    x = 50,367,286.90/7,721.66
  6. Step 6: Final answer
    x = 6,522.86

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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.