Home / 5,161.25-7,122.53-2,803.41

Finding the Fourth Proportional to 5,161.25, 7,122.53 and 2,803.41

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Solution

The fourth proportional to 5,161.25, 7,122.53 and 2,803.41 is: 3,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.25 : 7,122.53 = 2,803.41 : x
  2. Step 2: Convert to fraction form
    5,161.25/7,122.53 = 2,803.41/x
  3. Step 3: Cross multiply
    5,161.25x = 7,122.53 × 2,803.41
  4. Step 4: Simplify right side
    5,161.25x = 19,967,378.84
  5. Step 5: Solve for x
    x = 19,967,378.84/5,161.25
  6. Step 6: Final answer
    x = 3,868.71

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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.