Home / 5,299.18-7,948.80-2,178.70

Finding the Fourth Proportional to 5,299.18, 7,948.80 and 2,178.70

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Solution

The fourth proportional to 5,299.18, 7,948.80 and 2,178.70 is: 3,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.18 : 7,948.80 = 2,178.70 : x
  2. Step 2: Convert to fraction form
    5,299.18/7,948.80 = 2,178.70/x
  3. Step 3: Cross multiply
    5,299.18x = 7,948.80 × 2,178.70
  4. Step 4: Simplify right side
    5,299.18x = 17,318,050.56
  5. Step 5: Solve for x
    x = 17,318,050.56/5,299.18
  6. Step 6: Final answer
    x = 3,268.06

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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.