Home / 4,988.22-7,472.74-2,790.28

Finding the Fourth Proportional to 4,988.22, 7,472.74 and 2,790.28

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Solution

The fourth proportional to 4,988.22, 7,472.74 and 2,790.28 is: 4,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.22 : 7,472.74 = 2,790.28 : x
  2. Step 2: Convert to fraction form
    4,988.22/7,472.74 = 2,790.28/x
  3. Step 3: Cross multiply
    4,988.22x = 7,472.74 × 2,790.28
  4. Step 4: Simplify right side
    4,988.22x = 20,851,036.97
  5. Step 5: Solve for x
    x = 20,851,036.97/4,988.22
  6. Step 6: Final answer
    x = 4,180.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.