Home / 5,253.05-7,881.96-1,966.40

Finding the Fourth Proportional to 5,253.05, 7,881.96 and 1,966.40

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Solution

The fourth proportional to 5,253.05, 7,881.96 and 1,966.40 is: 2,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.05 : 7,881.96 = 1,966.40 : x
  2. Step 2: Convert to fraction form
    5,253.05/7,881.96 = 1,966.40/x
  3. Step 3: Cross multiply
    5,253.05x = 7,881.96 × 1,966.40
  4. Step 4: Simplify right side
    5,253.05x = 15,499,046.73
  5. Step 5: Solve for x
    x = 15,499,046.73/5,253.05
  6. Step 6: Final answer
    x = 2,950.49

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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.