Home / 2,145.74-3,213.36-1,937.97

Finding the Fourth Proportional to 2,145.74, 3,213.36 and 1,937.97

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Solution

The fourth proportional to 2,145.74, 3,213.36 and 1,937.97 is: 2,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.74 : 3,213.36 = 1,937.97 : x
  2. Step 2: Convert to fraction form
    2,145.74/3,213.36 = 1,937.97/x
  3. Step 3: Cross multiply
    2,145.74x = 3,213.36 × 1,937.97
  4. Step 4: Simplify right side
    2,145.74x = 6,227,395.28
  5. Step 5: Solve for x
    x = 6,227,395.28/2,145.74
  6. Step 6: Final answer
    x = 2,902.21

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1.5x scale

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.