Home / 5,059.78-6,982.14-2,821.56

Finding the Fourth Proportional to 5,059.78, 6,982.14 and 2,821.56

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Solution

The fourth proportional to 5,059.78, 6,982.14 and 2,821.56 is: 3,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059.78 : 6,982.14 = 2,821.56 : x
  2. Step 2: Convert to fraction form
    5,059.78/6,982.14 = 2,821.56/x
  3. Step 3: Cross multiply
    5,059.78x = 6,982.14 × 2,821.56
  4. Step 4: Simplify right side
    5,059.78x = 19,700,526.94
  5. Step 5: Solve for x
    x = 19,700,526.94/5,059.78
  6. Step 6: Final answer
    x = 3,893.55

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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.