Home / 5,111.80-7,054.55-3,222.70

Finding the Fourth Proportional to 5,111.80, 7,054.55 and 3,222.70

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Solution

The fourth proportional to 5,111.80, 7,054.55 and 3,222.70 is: 4,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.80 : 7,054.55 = 3,222.70 : x
  2. Step 2: Convert to fraction form
    5,111.80/7,054.55 = 3,222.70/x
  3. Step 3: Cross multiply
    5,111.80x = 7,054.55 × 3,222.70
  4. Step 4: Simplify right side
    5,111.80x = 22,734,682.17
  5. Step 5: Solve for x
    x = 22,734,682.17/5,111.80
  6. Step 6: Final answer
    x = 4,447.49

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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.