Home / 6,619.20-9,135.53-3,967.44

Finding the Fourth Proportional to 6,619.20, 9,135.53 and 3,967.44

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Solution

The fourth proportional to 6,619.20, 9,135.53 and 3,967.44 is: 5,475.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.20 : 9,135.53 = 3,967.44 : x
  2. Step 2: Convert to fraction form
    6,619.20/9,135.53 = 3,967.44/x
  3. Step 3: Cross multiply
    6,619.20x = 9,135.53 × 3,967.44
  4. Step 4: Simplify right side
    6,619.20x = 36,244,667.14
  5. Step 5: Solve for x
    x = 36,244,667.14/6,619.20
  6. Step 6: Final answer
    x = 5,475.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.