Home / 3,960.12-5,937.48-1,878.96

Finding the Fourth Proportional to 3,960.12, 5,937.48 and 1,878.96

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Solution

The fourth proportional to 3,960.12, 5,937.48 and 1,878.96 is: 2,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.12 : 5,937.48 = 1,878.96 : x
  2. Step 2: Convert to fraction form
    3,960.12/5,937.48 = 1,878.96/x
  3. Step 3: Cross multiply
    3,960.12x = 5,937.48 × 1,878.96
  4. Step 4: Simplify right side
    3,960.12x = 11,156,287.42
  5. Step 5: Solve for x
    x = 11,156,287.42/3,960.12
  6. Step 6: Final answer
    x = 2,817.16

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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.