Home / 1,331.23-1,832.91-1,131.64

Finding the Fourth Proportional to 1,331.23, 1,832.91 and 1,131.64

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Solution

The fourth proportional to 1,331.23, 1,832.91 and 1,131.64 is: 1,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.23 : 1,832.91 = 1,131.64 : x
  2. Step 2: Convert to fraction form
    1,331.23/1,832.91 = 1,131.64/x
  3. Step 3: Cross multiply
    1,331.23x = 1,832.91 × 1,131.64
  4. Step 4: Simplify right side
    1,331.23x = 2,074,194.27
  5. Step 5: Solve for x
    x = 2,074,194.27/1,331.23
  6. Step 6: Final answer
    x = 1,558.10

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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.