Home / 6,619.62-9,135.18-3,635.76

Finding the Fourth Proportional to 6,619.62, 9,135.18 and 3,635.76

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Solution

The fourth proportional to 6,619.62, 9,135.18 and 3,635.76 is: 5,017.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.62 : 9,135.18 = 3,635.76 : x
  2. Step 2: Convert to fraction form
    6,619.62/9,135.18 = 3,635.76/x
  3. Step 3: Cross multiply
    6,619.62x = 9,135.18 × 3,635.76
  4. Step 4: Simplify right side
    6,619.62x = 33,213,322.04
  5. Step 5: Solve for x
    x = 33,213,322.04/6,619.62
  6. Step 6: Final answer
    x = 5,017.41

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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.