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Finding the Fourth Proportional to 2,084.07, 3,126.07 and 851.50

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Solution

The fourth proportional to 2,084.07, 3,126.07 and 851.50 is: 1,277.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.07 : 3,126.07 = 851.50 : x
  2. Step 2: Convert to fraction form
    2,084.07/3,126.07 = 851.50/x
  3. Step 3: Cross multiply
    2,084.07x = 3,126.07 × 851.50
  4. Step 4: Simplify right side
    2,084.07x = 2,661,848.61
  5. Step 5: Solve for x
    x = 2,661,848.61/2,084.07
  6. Step 6: Final answer
    x = 1,277.24

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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.