Home / 5,518.53-7,618.28-3,759.36

Finding the Fourth Proportional to 5,518.53, 7,618.28 and 3,759.36

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Solution

The fourth proportional to 5,518.53, 7,618.28 and 3,759.36 is: 5,189.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.53 : 7,618.28 = 3,759.36 : x
  2. Step 2: Convert to fraction form
    5,518.53/7,618.28 = 3,759.36/x
  3. Step 3: Cross multiply
    5,518.53x = 7,618.28 × 3,759.36
  4. Step 4: Simplify right side
    5,518.53x = 28,639,863.16
  5. Step 5: Solve for x
    x = 28,639,863.16/5,518.53
  6. Step 6: Final answer
    x = 5,189.76

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Half scale
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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.