Home / 2,938.20-4,055.04-1,759.56

Finding the Fourth Proportional to 2,938.20, 4,055.04 and 1,759.56

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Solution

The fourth proportional to 2,938.20, 4,055.04 and 1,759.56 is: 2,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.20 : 4,055.04 = 1,759.56 : x
  2. Step 2: Convert to fraction form
    2,938.20/4,055.04 = 1,759.56/x
  3. Step 3: Cross multiply
    2,938.20x = 4,055.04 × 1,759.56
  4. Step 4: Simplify right side
    2,938.20x = 7,135,086.18
  5. Step 5: Solve for x
    x = 7,135,086.18/2,938.20
  6. Step 6: Final answer
    x = 2,428.39

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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.