Home / 7,778.98-11,666.07-2,230.83

Finding the Fourth Proportional to 7,778.98, 11,666.07 and 2,230.83

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Solution

The fourth proportional to 7,778.98, 11,666.07 and 2,230.83 is: 3,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.98 : 11,666.07 = 2,230.83 : x
  2. Step 2: Convert to fraction form
    7,778.98/11,666.07 = 2,230.83/x
  3. Step 3: Cross multiply
    7,778.98x = 11,666.07 × 2,230.83
  4. Step 4: Simplify right side
    7,778.98x = 26,025,018.94
  5. Step 5: Solve for x
    x = 26,025,018.94/7,778.98
  6. Step 6: Final answer
    x = 3,345.56

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1.5x scale

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.