Home / 2,412.91-3,621.57-1,490.23

Finding the Fourth Proportional to 2,412.91, 3,621.57 and 1,490.23

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Solution

The fourth proportional to 2,412.91, 3,621.57 and 1,490.23 is: 2,236.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.91 : 3,621.57 = 1,490.23 : x
  2. Step 2: Convert to fraction form
    2,412.91/3,621.57 = 1,490.23/x
  3. Step 3: Cross multiply
    2,412.91x = 3,621.57 × 1,490.23
  4. Step 4: Simplify right side
    2,412.91x = 5,396,972.26
  5. Step 5: Solve for x
    x = 5,396,972.26/2,412.91
  6. Step 6: Final answer
    x = 2,236.71

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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.