Home / 3,491.15-5,236.25-1,412.28

Finding the Fourth Proportional to 3,491.15, 5,236.25 and 1,412.28

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Solution

The fourth proportional to 3,491.15, 5,236.25 and 1,412.28 is: 2,118.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.15 : 5,236.25 = 1,412.28 : x
  2. Step 2: Convert to fraction form
    3,491.15/5,236.25 = 1,412.28/x
  3. Step 3: Cross multiply
    3,491.15x = 5,236.25 × 1,412.28
  4. Step 4: Simplify right side
    3,491.15x = 7,395,044.09
  5. Step 5: Solve for x
    x = 7,395,044.09/3,491.15
  6. Step 6: Final answer
    x = 2,118.23

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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.