Home / 2,938.89-4,408.35-2,154.81

Finding the Fourth Proportional to 2,938.89, 4,408.35 and 2,154.81

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Solution

The fourth proportional to 2,938.89, 4,408.35 and 2,154.81 is: 3,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.89 : 4,408.35 = 2,154.81 : x
  2. Step 2: Convert to fraction form
    2,938.89/4,408.35 = 2,154.81/x
  3. Step 3: Cross multiply
    2,938.89x = 4,408.35 × 2,154.81
  4. Step 4: Simplify right side
    2,938.89x = 9,499,156.66
  5. Step 5: Solve for x
    x = 9,499,156.66/2,938.89
  6. Step 6: Final answer
    x = 3,232.23

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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.