Home / 5,206.29-7,809.45-1,917.96

Finding the Fourth Proportional to 5,206.29, 7,809.45 and 1,917.96

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Solution

The fourth proportional to 5,206.29, 7,809.45 and 1,917.96 is: 2,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.29 : 7,809.45 = 1,917.96 : x
  2. Step 2: Convert to fraction form
    5,206.29/7,809.45 = 1,917.96/x
  3. Step 3: Cross multiply
    5,206.29x = 7,809.45 × 1,917.96
  4. Step 4: Simplify right side
    5,206.29x = 14,978,212.72
  5. Step 5: Solve for x
    x = 14,978,212.72/5,206.29
  6. Step 6: Final answer
    x = 2,876.95

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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.