Home / 3,581.85-5,374.89-1,938.36

Finding the Fourth Proportional to 3,581.85, 5,374.89 and 1,938.36

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Solution

The fourth proportional to 3,581.85, 5,374.89 and 1,938.36 is: 2,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.85 : 5,374.89 = 1,938.36 : x
  2. Step 2: Convert to fraction form
    3,581.85/5,374.89 = 1,938.36/x
  3. Step 3: Cross multiply
    3,581.85x = 5,374.89 × 1,938.36
  4. Step 4: Simplify right side
    3,581.85x = 10,418,471.78
  5. Step 5: Solve for x
    x = 10,418,471.78/3,581.85
  6. Step 6: Final answer
    x = 2,908.68

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1.5x scale

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.