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Finding the Fourth Proportional to 3,007.72, 4,146.86 and 1,943.68

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Solution

The fourth proportional to 3,007.72, 4,146.86 and 1,943.68 is: 2,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.72 : 4,146.86 = 1,943.68 : x
  2. Step 2: Convert to fraction form
    3,007.72/4,146.86 = 1,943.68/x
  3. Step 3: Cross multiply
    3,007.72x = 4,146.86 × 1,943.68
  4. Step 4: Simplify right side
    3,007.72x = 8,060,168.84
  5. Step 5: Solve for x
    x = 8,060,168.84/3,007.72
  6. Step 6: Final answer
    x = 2,679.83

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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.