Home / 2,626.50-3,939.75-1,087.54

Finding the Fourth Proportional to 2,626.50, 3,939.75 and 1,087.54

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Solution

The fourth proportional to 2,626.50, 3,939.75 and 1,087.54 is: 1,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.50 : 3,939.75 = 1,087.54 : x
  2. Step 2: Convert to fraction form
    2,626.50/3,939.75 = 1,087.54/x
  3. Step 3: Cross multiply
    2,626.50x = 3,939.75 × 1,087.54
  4. Step 4: Simplify right side
    2,626.50x = 4,284,635.72
  5. Step 5: Solve for x
    x = 4,284,635.72/2,626.50
  6. Step 6: Final answer
    x = 1,631.31

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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.