Home / 4,351.74-6,522.15-3,121.56

Finding the Fourth Proportional to 4,351.74, 6,522.15 and 3,121.56

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Solution

The fourth proportional to 4,351.74, 6,522.15 and 3,121.56 is: 4,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,351.74 : 6,522.15 = 3,121.56 : x
  2. Step 2: Convert to fraction form
    4,351.74/6,522.15 = 3,121.56/x
  3. Step 3: Cross multiply
    4,351.74x = 6,522.15 × 3,121.56
  4. Step 4: Simplify right side
    4,351.74x = 20,359,282.55
  5. Step 5: Solve for x
    x = 20,359,282.55/4,351.74
  6. Step 6: Final answer
    x = 4,678.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.