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Finding the Fourth Proportional to 3,966.63, 5,951.34 and 1,860.13

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Solution

The fourth proportional to 3,966.63, 5,951.34 and 1,860.13 is: 2,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.63 : 5,951.34 = 1,860.13 : x
  2. Step 2: Convert to fraction form
    3,966.63/5,951.34 = 1,860.13/x
  3. Step 3: Cross multiply
    3,966.63x = 5,951.34 × 1,860.13
  4. Step 4: Simplify right side
    3,966.63x = 11,070,266.07
  5. Step 5: Solve for x
    x = 11,070,266.07/3,966.63
  6. Step 6: Final answer
    x = 2,790.85

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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.