Home / 2,722.09-3,756.64-1,602.78

Finding the Fourth Proportional to 2,722.09, 3,756.64 and 1,602.78

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Solution

The fourth proportional to 2,722.09, 3,756.64 and 1,602.78 is: 2,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.09 : 3,756.64 = 1,602.78 : x
  2. Step 2: Convert to fraction form
    2,722.09/3,756.64 = 1,602.78/x
  3. Step 3: Cross multiply
    2,722.09x = 3,756.64 × 1,602.78
  4. Step 4: Simplify right side
    2,722.09x = 6,021,067.46
  5. Step 5: Solve for x
    x = 6,021,067.46/2,722.09
  6. Step 6: Final answer
    x = 2,211.93

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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.