Home / 3,154.39-4,355.07-1,960.63

Finding the Fourth Proportional to 3,154.39, 4,355.07 and 1,960.63

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Solution

The fourth proportional to 3,154.39, 4,355.07 and 1,960.63 is: 2,706.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.39 : 4,355.07 = 1,960.63 : x
  2. Step 2: Convert to fraction form
    3,154.39/4,355.07 = 1,960.63/x
  3. Step 3: Cross multiply
    3,154.39x = 4,355.07 × 1,960.63
  4. Step 4: Simplify right side
    3,154.39x = 8,538,680.89
  5. Step 5: Solve for x
    x = 8,538,680.89/3,154.39
  6. Step 6: Final answer
    x = 2,706.92

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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.