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Finding the Fourth Proportional to 6,347.30, 8,751.12 and 4,105.22

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Solution

The fourth proportional to 6,347.30, 8,751.12 and 4,105.22 is: 5,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.30 : 8,751.12 = 4,105.22 : x
  2. Step 2: Convert to fraction form
    6,347.30/8,751.12 = 4,105.22/x
  3. Step 3: Cross multiply
    6,347.30x = 8,751.12 × 4,105.22
  4. Step 4: Simplify right side
    6,347.30x = 35,925,272.85
  5. Step 5: Solve for x
    x = 35,925,272.85/6,347.30
  6. Step 6: Final answer
    x = 5,659.93

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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.