Home / 3,785.42-5,679.06-1,812.55

Finding the Fourth Proportional to 3,785.42, 5,679.06 and 1,812.55

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Solution

The fourth proportional to 3,785.42, 5,679.06 and 1,812.55 is: 2,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.42 : 5,679.06 = 1,812.55 : x
  2. Step 2: Convert to fraction form
    3,785.42/5,679.06 = 1,812.55/x
  3. Step 3: Cross multiply
    3,785.42x = 5,679.06 × 1,812.55
  4. Step 4: Simplify right side
    3,785.42x = 10,293,551.81
  5. Step 5: Solve for x
    x = 10,293,551.81/3,785.42
  6. Step 6: Final answer
    x = 2,719.27

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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.