Home / 2,721.78-3,754.62-1,725.35

Finding the Fourth Proportional to 2,721.78, 3,754.62 and 1,725.35

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Solution

The fourth proportional to 2,721.78, 3,754.62 and 1,725.35 is: 2,380.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.78 : 3,754.62 = 1,725.35 : x
  2. Step 2: Convert to fraction form
    2,721.78/3,754.62 = 1,725.35/x
  3. Step 3: Cross multiply
    2,721.78x = 3,754.62 × 1,725.35
  4. Step 4: Simplify right side
    2,721.78x = 6,478,014.84
  5. Step 5: Solve for x
    x = 6,478,014.84/2,721.78
  6. Step 6: Final answer
    x = 2,380.07

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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.