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Finding the Fourth Proportional to 7,779.88, 11,670.48 and 2,233.68

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Solution

The fourth proportional to 7,779.88, 11,670.48 and 2,233.68 is: 3,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.88 : 11,670.48 = 2,233.68 : x
  2. Step 2: Convert to fraction form
    7,779.88/11,670.48 = 2,233.68/x
  3. Step 3: Cross multiply
    7,779.88x = 11,670.48 × 2,233.68
  4. Step 4: Simplify right side
    7,779.88x = 26,068,117.77
  5. Step 5: Solve for x
    x = 26,068,117.77/7,779.88
  6. Step 6: Final answer
    x = 3,350.71

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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.