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Finding the Fourth Proportional to 3,722.99, 5,581.04 and 1,872.50

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Solution

The fourth proportional to 3,722.99, 5,581.04 and 1,872.50 is: 2,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.99 : 5,581.04 = 1,872.50 : x
  2. Step 2: Convert to fraction form
    3,722.99/5,581.04 = 1,872.50/x
  3. Step 3: Cross multiply
    3,722.99x = 5,581.04 × 1,872.50
  4. Step 4: Simplify right side
    3,722.99x = 10,450,460.13
  5. Step 5: Solve for x
    x = 10,450,460.13/3,722.99
  6. Step 6: Final answer
    x = 2,807.01

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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.