Home / 3,491.42-5,236.37-1,240.25

Finding the Fourth Proportional to 3,491.42, 5,236.37 and 1,240.25

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Solution

The fourth proportional to 3,491.42, 5,236.37 and 1,240.25 is: 1,860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.42 : 5,236.37 = 1,240.25 : x
  2. Step 2: Convert to fraction form
    3,491.42/5,236.37 = 1,240.25/x
  3. Step 3: Cross multiply
    3,491.42x = 5,236.37 × 1,240.25
  4. Step 4: Simplify right side
    3,491.42x = 6,494,407.89
  5. Step 5: Solve for x
    x = 6,494,407.89/3,491.42
  6. Step 6: Final answer
    x = 1,860.11

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Double scale
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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.