Home / 2,119.14-2,921.13-1,725.48

Finding the Fourth Proportional to 2,119.14, 2,921.13 and 1,725.48

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Solution

The fourth proportional to 2,119.14, 2,921.13 and 1,725.48 is: 2,378.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.14 : 2,921.13 = 1,725.48 : x
  2. Step 2: Convert to fraction form
    2,119.14/2,921.13 = 1,725.48/x
  3. Step 3: Cross multiply
    2,119.14x = 2,921.13 × 1,725.48
  4. Step 4: Simplify right side
    2,119.14x = 5,040,351.39
  5. Step 5: Solve for x
    x = 5,040,351.39/2,119.14
  6. Step 6: Final answer
    x = 2,378.49

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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.