Home / 2,980.17-4,470.27-788.73

Finding the Fourth Proportional to 2,980.17, 4,470.27 and 788.73

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Solution

The fourth proportional to 2,980.17, 4,470.27 and 788.73 is: 1,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.17 : 4,470.27 = 788.73 : x
  2. Step 2: Convert to fraction form
    2,980.17/4,470.27 = 788.73/x
  3. Step 3: Cross multiply
    2,980.17x = 4,470.27 × 788.73
  4. Step 4: Simplify right side
    2,980.17x = 3,525,836.06
  5. Step 5: Solve for x
    x = 3,525,836.06/2,980.17
  6. Step 6: Final answer
    x = 1,183.10

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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.