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Finding the Fourth Proportional to 6,352.70, 8,765.47 and 3,993.47

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Solution

The fourth proportional to 6,352.70, 8,765.47 and 3,993.47 is: 5,510.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,352.70 : 8,765.47 = 3,993.47 : x
  2. Step 2: Convert to fraction form
    6,352.70/8,765.47 = 3,993.47/x
  3. Step 3: Cross multiply
    6,352.70x = 8,765.47 × 3,993.47
  4. Step 4: Simplify right side
    6,352.70x = 35,004,587.67
  5. Step 5: Solve for x
    x = 35,004,587.67/6,352.70
  6. Step 6: Final answer
    x = 5,510.19

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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.