Home / 6,279.18-8,668.47-4,859.70

Finding the Fourth Proportional to 6,279.18, 8,668.47 and 4,859.70

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Solution

The fourth proportional to 6,279.18, 8,668.47 and 4,859.70 is: 6,708.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.18 : 8,668.47 = 4,859.70 : x
  2. Step 2: Convert to fraction form
    6,279.18/8,668.47 = 4,859.70/x
  3. Step 3: Cross multiply
    6,279.18x = 8,668.47 × 4,859.70
  4. Step 4: Simplify right side
    6,279.18x = 42,126,163.66
  5. Step 5: Solve for x
    x = 42,126,163.66/6,279.18
  6. Step 6: Final answer
    x = 6,708.86

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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.