Home / 3,724.80-5,140.05-2,152.56

Finding the Fourth Proportional to 3,724.80, 5,140.05 and 2,152.56

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Solution

The fourth proportional to 3,724.80, 5,140.05 and 2,152.56 is: 2,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.80 : 5,140.05 = 2,152.56 : x
  2. Step 2: Convert to fraction form
    3,724.80/5,140.05 = 2,152.56/x
  3. Step 3: Cross multiply
    3,724.80x = 5,140.05 × 2,152.56
  4. Step 4: Simplify right side
    3,724.80x = 11,064,266.03
  5. Step 5: Solve for x
    x = 11,064,266.03/3,724.80
  6. Step 6: Final answer
    x = 2,970.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.