Home / 7,779.30-11,665.44-2,231.39

Finding the Fourth Proportional to 7,779.30, 11,665.44 and 2,231.39

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Solution

The fourth proportional to 7,779.30, 11,665.44 and 2,231.39 is: 3,346.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.30 : 11,665.44 = 2,231.39 : x
  2. Step 2: Convert to fraction form
    7,779.30/11,665.44 = 2,231.39/x
  3. Step 3: Cross multiply
    7,779.30x = 11,665.44 × 2,231.39
  4. Step 4: Simplify right side
    7,779.30x = 26,030,087.83
  5. Step 5: Solve for x
    x = 26,030,087.83/7,779.30
  6. Step 6: Final answer
    x = 3,346.07

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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.