Home / 2,226.38-3,071.36-1,440.68

Finding the Fourth Proportional to 2,226.38, 3,071.36 and 1,440.68

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Solution

The fourth proportional to 2,226.38, 3,071.36 and 1,440.68 is: 1,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.38 : 3,071.36 = 1,440.68 : x
  2. Step 2: Convert to fraction form
    2,226.38/3,071.36 = 1,440.68/x
  3. Step 3: Cross multiply
    2,226.38x = 3,071.36 × 1,440.68
  4. Step 4: Simplify right side
    2,226.38x = 4,424,846.92
  5. Step 5: Solve for x
    x = 4,424,846.92/2,226.38
  6. Step 6: Final answer
    x = 1,987.46

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,227.38, 3,072.74 and 1,441.68
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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.