Home / 3,761.46-5,643.40-1,812.60

Finding the Fourth Proportional to 3,761.46, 5,643.40 and 1,812.60

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Solution

The fourth proportional to 3,761.46, 5,643.40 and 1,812.60 is: 2,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.46 : 5,643.40 = 1,812.60 : x
  2. Step 2: Convert to fraction form
    3,761.46/5,643.40 = 1,812.60/x
  3. Step 3: Cross multiply
    3,761.46x = 5,643.40 × 1,812.60
  4. Step 4: Simplify right side
    3,761.46x = 10,229,226.84
  5. Step 5: Solve for x
    x = 10,229,226.84/3,761.46
  6. Step 6: Final answer
    x = 2,719.48

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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.