Home / 2,161.36-2,963.28-2,122.48

Finding the Fourth Proportional to 2,161.36, 2,963.28 and 2,122.48

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Solution

The fourth proportional to 2,161.36, 2,963.28 and 2,122.48 is: 2,909.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.36 : 2,963.28 = 2,122.48 : x
  2. Step 2: Convert to fraction form
    2,161.36/2,963.28 = 2,122.48/x
  3. Step 3: Cross multiply
    2,161.36x = 2,963.28 × 2,122.48
  4. Step 4: Simplify right side
    2,161.36x = 6,289,502.53
  5. Step 5: Solve for x
    x = 6,289,502.53/2,161.36
  6. Step 6: Final answer
    x = 2,909.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.