Home / 3,825.04-5,278.62-2,123.50

Finding the Fourth Proportional to 3,825.04, 5,278.62 and 2,123.50

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Solution

The fourth proportional to 3,825.04, 5,278.62 and 2,123.50 is: 2,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.04 : 5,278.62 = 2,123.50 : x
  2. Step 2: Convert to fraction form
    3,825.04/5,278.62 = 2,123.50/x
  3. Step 3: Cross multiply
    3,825.04x = 5,278.62 × 2,123.50
  4. Step 4: Simplify right side
    3,825.04x = 11,209,149.57
  5. Step 5: Solve for x
    x = 11,209,149.57/3,825.04
  6. Step 6: Final answer
    x = 2,930.47

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1.5x scale

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.