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Finding the Fourth Proportional to 3,811.61, 5,719.41 and 1,473.19

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Solution

The fourth proportional to 3,811.61, 5,719.41 and 1,473.19 is: 2,210.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.61 : 5,719.41 = 1,473.19 : x
  2. Step 2: Convert to fraction form
    3,811.61/5,719.41 = 1,473.19/x
  3. Step 3: Cross multiply
    3,811.61x = 5,719.41 × 1,473.19
  4. Step 4: Simplify right side
    3,811.61x = 8,425,763.32
  5. Step 5: Solve for x
    x = 8,425,763.32/3,811.61
  6. Step 6: Final answer
    x = 2,210.55

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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.