Home / 5,289.75-7,934.63-2,211.75

Finding the Fourth Proportional to 5,289.75, 7,934.63 and 2,211.75

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Solution

The fourth proportional to 5,289.75, 7,934.63 and 2,211.75 is: 3,317.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.75 : 7,934.63 = 2,211.75 : x
  2. Step 2: Convert to fraction form
    5,289.75/7,934.63 = 2,211.75/x
  3. Step 3: Cross multiply
    5,289.75x = 7,934.63 × 2,211.75
  4. Step 4: Simplify right side
    5,289.75x = 17,549,417.90
  5. Step 5: Solve for x
    x = 17,549,417.90/5,289.75
  6. Step 6: Final answer
    x = 3,317.63

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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.