Home / 7,775.90-11,665.87-2,229.65

Finding the Fourth Proportional to 7,775.90, 11,665.87 and 2,229.65

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Solution

The fourth proportional to 7,775.90, 11,665.87 and 2,229.65 is: 3,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.90 : 11,665.87 = 2,229.65 : x
  2. Step 2: Convert to fraction form
    7,775.90/11,665.87 = 2,229.65/x
  3. Step 3: Cross multiply
    7,775.90x = 11,665.87 × 2,229.65
  4. Step 4: Simplify right side
    7,775.90x = 26,010,852.51
  5. Step 5: Solve for x
    x = 26,010,852.51/7,775.90
  6. Step 6: Final answer
    x = 3,345.06

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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.