Home / 6,776.78-10,159.32-2,619.70

Finding the Fourth Proportional to 6,776.78, 10,159.32 and 2,619.70

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Solution

The fourth proportional to 6,776.78, 10,159.32 and 2,619.70 is: 3,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,776.78 : 10,159.32 = 2,619.70 : x
  2. Step 2: Convert to fraction form
    6,776.78/10,159.32 = 2,619.70/x
  3. Step 3: Cross multiply
    6,776.78x = 10,159.32 × 2,619.70
  4. Step 4: Simplify right side
    6,776.78x = 26,614,370.60
  5. Step 5: Solve for x
    x = 26,614,370.60/6,776.78
  6. Step 6: Final answer
    x = 3,927.29

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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.