Home / 5,253.80-7,881.33-2,133.14

Finding the Fourth Proportional to 5,253.80, 7,881.33 and 2,133.14

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Solution

The fourth proportional to 5,253.80, 7,881.33 and 2,133.14 is: 3,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.80 : 7,881.33 = 2,133.14 : x
  2. Step 2: Convert to fraction form
    5,253.80/7,881.33 = 2,133.14/x
  3. Step 3: Cross multiply
    5,253.80x = 7,881.33 × 2,133.14
  4. Step 4: Simplify right side
    5,253.80x = 16,811,980.28
  5. Step 5: Solve for x
    x = 16,811,980.28/5,253.80
  6. Step 6: Final answer
    x = 3,199.97

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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.