Home / 4,767.83-7,139.56-2,821.43

Finding the Fourth Proportional to 4,767.83, 7,139.56 and 2,821.43

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Solution

The fourth proportional to 4,767.83, 7,139.56 and 2,821.43 is: 4,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.83 : 7,139.56 = 2,821.43 : x
  2. Step 2: Convert to fraction form
    4,767.83/7,139.56 = 2,821.43/x
  3. Step 3: Cross multiply
    4,767.83x = 7,139.56 × 2,821.43
  4. Step 4: Simplify right side
    4,767.83x = 20,143,768.77
  5. Step 5: Solve for x
    x = 20,143,768.77/4,767.83
  6. Step 6: Final answer
    x = 4,224.93

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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.