Home / 5,518.53-7,612.18-3,278.88

Finding the Fourth Proportional to 5,518.53, 7,612.18 and 3,278.88

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Solution

The fourth proportional to 5,518.53, 7,612.18 and 3,278.88 is: 4,522.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.53 : 7,612.18 = 3,278.88 : x
  2. Step 2: Convert to fraction form
    5,518.53/7,612.18 = 3,278.88/x
  3. Step 3: Cross multiply
    5,518.53x = 7,612.18 × 3,278.88
  4. Step 4: Simplify right side
    5,518.53x = 24,959,416.56
  5. Step 5: Solve for x
    x = 24,959,416.56/5,518.53
  6. Step 6: Final answer
    x = 4,522.84

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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.