Home / 5,161.08-7,122.15-2,803.22

Finding the Fourth Proportional to 5,161.08, 7,122.15 and 2,803.22

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Solution

The fourth proportional to 5,161.08, 7,122.15 and 2,803.22 is: 3,868.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.08 : 7,122.15 = 2,803.22 : x
  2. Step 2: Convert to fraction form
    5,161.08/7,122.15 = 2,803.22/x
  3. Step 3: Cross multiply
    5,161.08x = 7,122.15 × 2,803.22
  4. Step 4: Simplify right side
    5,161.08x = 19,964,992.37
  5. Step 5: Solve for x
    x = 19,964,992.37/5,161.08
  6. Step 6: Final answer
    x = 3,868.37

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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.