Home / 5,247.96-7,871.82-1,299.06

Finding the Fourth Proportional to 5,247.96, 7,871.82 and 1,299.06

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Solution

The fourth proportional to 5,247.96, 7,871.82 and 1,299.06 is: 1,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.96 : 7,871.82 = 1,299.06 : x
  2. Step 2: Convert to fraction form
    5,247.96/7,871.82 = 1,299.06/x
  3. Step 3: Cross multiply
    5,247.96x = 7,871.82 × 1,299.06
  4. Step 4: Simplify right side
    5,247.96x = 10,225,966.49
  5. Step 5: Solve for x
    x = 10,225,966.49/5,247.96
  6. Step 6: Final answer
    x = 1,948.56

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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.