Home / 4,012.38-5,538.63-2,685.60

Finding the Fourth Proportional to 4,012.38, 5,538.63 and 2,685.60

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Solution

The fourth proportional to 4,012.38, 5,538.63 and 2,685.60 is: 3,707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,012.38 : 5,538.63 = 2,685.60 : x
  2. Step 2: Convert to fraction form
    4,012.38/5,538.63 = 2,685.60/x
  3. Step 3: Cross multiply
    4,012.38x = 5,538.63 × 2,685.60
  4. Step 4: Simplify right side
    4,012.38x = 14,874,544.73
  5. Step 5: Solve for x
    x = 14,874,544.73/4,012.38
  6. Step 6: Final answer
    x = 3,707.16

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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.