Home / 2,820.49-4,227.99-1,177.51

Finding the Fourth Proportional to 2,820.49, 4,227.99 and 1,177.51

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Solution

The fourth proportional to 2,820.49, 4,227.99 and 1,177.51 is: 1,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.49 : 4,227.99 = 1,177.51 : x
  2. Step 2: Convert to fraction form
    2,820.49/4,227.99 = 1,177.51/x
  3. Step 3: Cross multiply
    2,820.49x = 4,227.99 × 1,177.51
  4. Step 4: Simplify right side
    2,820.49x = 4,978,503.45
  5. Step 5: Solve for x
    x = 4,978,503.45/2,820.49
  6. Step 6: Final answer
    x = 1,765.12

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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.