Home / 3,938.21-5,435.85-2,594.80

Finding the Fourth Proportional to 3,938.21, 5,435.85 and 2,594.80

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Solution

The fourth proportional to 3,938.21, 5,435.85 and 2,594.80 is: 3,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.21 : 5,435.85 = 2,594.80 : x
  2. Step 2: Convert to fraction form
    3,938.21/5,435.85 = 2,594.80/x
  3. Step 3: Cross multiply
    3,938.21x = 5,435.85 × 2,594.80
  4. Step 4: Simplify right side
    3,938.21x = 14,104,929.53
  5. Step 5: Solve for x
    x = 14,104,929.53/3,938.21
  6. Step 6: Final answer
    x = 3,581.56

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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.