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Finding the Fourth Proportional to 5,778.32, 7,973.76 and 3,260.84

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Solution

The fourth proportional to 5,778.32, 7,973.76 and 3,260.84 is: 4,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.32 : 7,973.76 = 3,260.84 : x
  2. Step 2: Convert to fraction form
    5,778.32/7,973.76 = 3,260.84/x
  3. Step 3: Cross multiply
    5,778.32x = 7,973.76 × 3,260.84
  4. Step 4: Simplify right side
    5,778.32x = 26,001,155.56
  5. Step 5: Solve for x
    x = 26,001,155.56/5,778.32
  6. Step 6: Final answer
    x = 4,499.78

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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.