Home / 7,922.80-11,881.40-2,727.46

Finding the Fourth Proportional to 7,922.80, 11,881.40 and 2,727.46

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Solution

The fourth proportional to 7,922.80, 11,881.40 and 2,727.46 is: 4,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.80 : 11,881.40 = 2,727.46 : x
  2. Step 2: Convert to fraction form
    7,922.80/11,881.40 = 2,727.46/x
  3. Step 3: Cross multiply
    7,922.80x = 11,881.40 × 2,727.46
  4. Step 4: Simplify right side
    7,922.80x = 32,406,043.24
  5. Step 5: Solve for x
    x = 32,406,043.24/7,922.80
  6. Step 6: Final answer
    x = 4,090.23

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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.