Home / 7,873.18-11,810.40-2,029.78

Finding the Fourth Proportional to 7,873.18, 11,810.40 and 2,029.78

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Solution

The fourth proportional to 7,873.18, 11,810.40 and 2,029.78 is: 3,044.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.18 : 11,810.40 = 2,029.78 : x
  2. Step 2: Convert to fraction form
    7,873.18/11,810.40 = 2,029.78/x
  3. Step 3: Cross multiply
    7,873.18x = 11,810.40 × 2,029.78
  4. Step 4: Simplify right side
    7,873.18x = 23,972,513.71
  5. Step 5: Solve for x
    x = 23,972,513.71/7,873.18
  6. Step 6: Final answer
    x = 3,044.83

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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.