Home / 6,215.29-8,577.71-4,640.65

Finding the Fourth Proportional to 6,215.29, 8,577.71 and 4,640.65

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Solution

The fourth proportional to 6,215.29, 8,577.71 and 4,640.65 is: 6,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.29 : 8,577.71 = 4,640.65 : x
  2. Step 2: Convert to fraction form
    6,215.29/8,577.71 = 4,640.65/x
  3. Step 3: Cross multiply
    6,215.29x = 8,577.71 × 4,640.65
  4. Step 4: Simplify right side
    6,215.29x = 39,806,149.91
  5. Step 5: Solve for x
    x = 39,806,149.91/6,215.29
  6. Step 6: Final answer
    x = 6,404.55

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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.