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Finding the Fourth Proportional to 6,347.74, 8,759.77 and 3,515.05

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Solution

The fourth proportional to 6,347.74, 8,759.77 and 3,515.05 is: 4,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.74 : 8,759.77 = 3,515.05 : x
  2. Step 2: Convert to fraction form
    6,347.74/8,759.77 = 3,515.05/x
  3. Step 3: Cross multiply
    6,347.74x = 8,759.77 × 3,515.05
  4. Step 4: Simplify right side
    6,347.74x = 30,791,029.54
  5. Step 5: Solve for x
    x = 30,791,029.54/6,347.74
  6. Step 6: Final answer
    x = 4,850.71

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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.