Home / 3,121.46-4,307.93-2,334.14

Finding the Fourth Proportional to 3,121.46, 4,307.93 and 2,334.14

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Solution

The fourth proportional to 3,121.46, 4,307.93 and 2,334.14 is: 3,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.46 : 4,307.93 = 2,334.14 : x
  2. Step 2: Convert to fraction form
    3,121.46/4,307.93 = 2,334.14/x
  3. Step 3: Cross multiply
    3,121.46x = 4,307.93 × 2,334.14
  4. Step 4: Simplify right side
    3,121.46x = 10,055,311.73
  5. Step 5: Solve for x
    x = 10,055,311.73/3,121.46
  6. Step 6: Final answer
    x = 3,221.35

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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.