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Finding the Fourth Proportional to 5,778.53, 7,974.09 and 3,388.18

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Solution

The fourth proportional to 5,778.53, 7,974.09 and 3,388.18 is: 4,675.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.53 : 7,974.09 = 3,388.18 : x
  2. Step 2: Convert to fraction form
    5,778.53/7,974.09 = 3,388.18/x
  3. Step 3: Cross multiply
    5,778.53x = 7,974.09 × 3,388.18
  4. Step 4: Simplify right side
    5,778.53x = 27,017,637.74
  5. Step 5: Solve for x
    x = 27,017,637.74/5,778.53
  6. Step 6: Final answer
    x = 4,675.52

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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.