Home / 5,479.87-8,227.40-2,813.35

Finding the Fourth Proportional to 5,479.87, 8,227.40 and 2,813.35

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Solution

The fourth proportional to 5,479.87, 8,227.40 and 2,813.35 is: 4,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.87 : 8,227.40 = 2,813.35 : x
  2. Step 2: Convert to fraction form
    5,479.87/8,227.40 = 2,813.35/x
  3. Step 3: Cross multiply
    5,479.87x = 8,227.40 × 2,813.35
  4. Step 4: Simplify right side
    5,479.87x = 23,146,555.79
  5. Step 5: Solve for x
    x = 23,146,555.79/5,479.87
  6. Step 6: Final answer
    x = 4,223.92

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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.