Home / 7,852.05-11,777.76-2,657.93

Finding the Fourth Proportional to 7,852.05, 11,777.76 and 2,657.93

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Solution

The fourth proportional to 7,852.05, 11,777.76 and 2,657.93 is: 3,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852.05 : 11,777.76 = 2,657.93 : x
  2. Step 2: Convert to fraction form
    7,852.05/11,777.76 = 2,657.93/x
  3. Step 3: Cross multiply
    7,852.05x = 11,777.76 × 2,657.93
  4. Step 4: Simplify right side
    7,852.05x = 31,304,402.75
  5. Step 5: Solve for x
    x = 31,304,402.75/7,852.05
  6. Step 6: Final answer
    x = 3,986.78

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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.