Home / 5,219.73-7,830.40-1,756.71

Finding the Fourth Proportional to 5,219.73, 7,830.40 and 1,756.71

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Solution

The fourth proportional to 5,219.73, 7,830.40 and 1,756.71 is: 2,635.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.73 : 7,830.40 = 1,756.71 : x
  2. Step 2: Convert to fraction form
    5,219.73/7,830.40 = 1,756.71/x
  3. Step 3: Cross multiply
    5,219.73x = 7,830.40 × 1,756.71
  4. Step 4: Simplify right side
    5,219.73x = 13,755,698.44
  5. Step 5: Solve for x
    x = 13,755,698.44/5,219.73
  6. Step 6: Final answer
    x = 2,635.33

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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.