Home / 2,908.07-4,011.84-1,938.14

Finding the Fourth Proportional to 2,908.07, 4,011.84 and 1,938.14

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Solution

The fourth proportional to 2,908.07, 4,011.84 and 1,938.14 is: 2,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.07 : 4,011.84 = 1,938.14 : x
  2. Step 2: Convert to fraction form
    2,908.07/4,011.84 = 1,938.14/x
  3. Step 3: Cross multiply
    2,908.07x = 4,011.84 × 1,938.14
  4. Step 4: Simplify right side
    2,908.07x = 7,775,512.42
  5. Step 5: Solve for x
    x = 7,775,512.42/2,908.07
  6. Step 6: Final answer
    x = 2,673.78

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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.