Home / 3,087.75-4,631.63-1,240.14

Finding the Fourth Proportional to 3,087.75, 4,631.63 and 1,240.14

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Solution

The fourth proportional to 3,087.75, 4,631.63 and 1,240.14 is: 1,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.75 : 4,631.63 = 1,240.14 : x
  2. Step 2: Convert to fraction form
    3,087.75/4,631.63 = 1,240.14/x
  3. Step 3: Cross multiply
    3,087.75x = 4,631.63 × 1,240.14
  4. Step 4: Simplify right side
    3,087.75x = 5,743,863.43
  5. Step 5: Solve for x
    x = 5,743,863.43/3,087.75
  6. Step 6: Final answer
    x = 1,860.21

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Double scale
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Similar ratio
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1.5x scale

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.