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Finding the Fourth Proportional to 2,746.73, 4,120.06 and 666.75

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Solution

The fourth proportional to 2,746.73, 4,120.06 and 666.75 is: 1,000.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.73 : 4,120.06 = 666.75 : x
  2. Step 2: Convert to fraction form
    2,746.73/4,120.06 = 666.75/x
  3. Step 3: Cross multiply
    2,746.73x = 4,120.06 × 666.75
  4. Step 4: Simplify right side
    2,746.73x = 2,747,050.01
  5. Step 5: Solve for x
    x = 2,747,050.01/2,746.73
  6. Step 6: Final answer
    x = 1,000.12

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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.