Home / 4,920.30-6,789.69-3,031.65

Finding the Fourth Proportional to 4,920.30, 6,789.69 and 3,031.65

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Solution

The fourth proportional to 4,920.30, 6,789.69 and 3,031.65 is: 4,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.30 : 6,789.69 = 3,031.65 : x
  2. Step 2: Convert to fraction form
    4,920.30/6,789.69 = 3,031.65/x
  3. Step 3: Cross multiply
    4,920.30x = 6,789.69 × 3,031.65
  4. Step 4: Simplify right side
    4,920.30x = 20,583,963.69
  5. Step 5: Solve for x
    x = 20,583,963.69/4,920.30
  6. Step 6: Final answer
    x = 4,183.48

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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.