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Finding the Fourth Proportional to 3,843.84, 5,765.16 and 1,070.76

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Solution

The fourth proportional to 3,843.84, 5,765.16 and 1,070.76 is: 1,605.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.84 : 5,765.16 = 1,070.76 : x
  2. Step 2: Convert to fraction form
    3,843.84/5,765.16 = 1,070.76/x
  3. Step 3: Cross multiply
    3,843.84x = 5,765.16 × 1,070.76
  4. Step 4: Simplify right side
    3,843.84x = 6,173,102.72
  5. Step 5: Solve for x
    x = 6,173,102.72/3,843.84
  6. Step 6: Final answer
    x = 1,605.97

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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.