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Finding the Fourth Proportional to 3,927.36, 5,891.04 and 1,869.12

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Solution

The fourth proportional to 3,927.36, 5,891.04 and 1,869.12 is: 2,803.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.36 : 5,891.04 = 1,869.12 : x
  2. Step 2: Convert to fraction form
    3,927.36/5,891.04 = 1,869.12/x
  3. Step 3: Cross multiply
    3,927.36x = 5,891.04 × 1,869.12
  4. Step 4: Simplify right side
    3,927.36x = 11,011,060.68
  5. Step 5: Solve for x
    x = 11,011,060.68/3,927.36
  6. Step 6: Final answer
    x = 2,803.68

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Similar ratio
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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.