Home / 1,361.08-2,041.62-1,231.48

Finding the Fourth Proportional to 1,361.08, 2,041.62 and 1,231.48

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Solution

The fourth proportional to 1,361.08, 2,041.62 and 1,231.48 is: 1,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.08 : 2,041.62 = 1,231.48 : x
  2. Step 2: Convert to fraction form
    1,361.08/2,041.62 = 1,231.48/x
  3. Step 3: Cross multiply
    1,361.08x = 2,041.62 × 1,231.48
  4. Step 4: Simplify right side
    1,361.08x = 2,514,214.20
  5. Step 5: Solve for x
    x = 2,514,214.20/1,361.08
  6. Step 6: Final answer
    x = 1,847.22

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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.