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Finding the Fourth Proportional to 5,632.85, 7,765.09 and 3,949.18

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Solution

The fourth proportional to 5,632.85, 7,765.09 and 3,949.18 is: 5,444.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,632.85 : 7,765.09 = 3,949.18 : x
  2. Step 2: Convert to fraction form
    5,632.85/7,765.09 = 3,949.18/x
  3. Step 3: Cross multiply
    5,632.85x = 7,765.09 × 3,949.18
  4. Step 4: Simplify right side
    5,632.85x = 30,665,708.84
  5. Step 5: Solve for x
    x = 30,665,708.84/5,632.85
  6. Step 6: Final answer
    x = 5,444.08

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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.