Home / 2,938.28-4,406.38-2,114.08

Finding the Fourth Proportional to 2,938.28, 4,406.38 and 2,114.08

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Solution

The fourth proportional to 2,938.28, 4,406.38 and 2,114.08 is: 3,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.28 : 4,406.38 = 2,114.08 : x
  2. Step 2: Convert to fraction form
    2,938.28/4,406.38 = 2,114.08/x
  3. Step 3: Cross multiply
    2,938.28x = 4,406.38 × 2,114.08
  4. Step 4: Simplify right side
    2,938.28x = 9,315,439.83
  5. Step 5: Solve for x
    x = 9,315,439.83/2,938.28
  6. Step 6: Final answer
    x = 3,170.37

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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.