Home / 6,479.24-9,717.06-2,780.65

Finding the Fourth Proportional to 6,479.24, 9,717.06 and 2,780.65

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Solution

The fourth proportional to 6,479.24, 9,717.06 and 2,780.65 is: 4,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.24 : 9,717.06 = 2,780.65 : x
  2. Step 2: Convert to fraction form
    6,479.24/9,717.06 = 2,780.65/x
  3. Step 3: Cross multiply
    6,479.24x = 9,717.06 × 2,780.65
  4. Step 4: Simplify right side
    6,479.24x = 27,019,740.74
  5. Step 5: Solve for x
    x = 27,019,740.74/6,479.24
  6. Step 6: Final answer
    x = 4,170.20

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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.