Home / 1,625.30-2,242.06-1,231.64

Finding the Fourth Proportional to 1,625.30, 2,242.06 and 1,231.64

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Solution

The fourth proportional to 1,625.30, 2,242.06 and 1,231.64 is: 1,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.30 : 2,242.06 = 1,231.64 : x
  2. Step 2: Convert to fraction form
    1,625.30/2,242.06 = 1,231.64/x
  3. Step 3: Cross multiply
    1,625.30x = 2,242.06 × 1,231.64
  4. Step 4: Simplify right side
    1,625.30x = 2,761,410.78
  5. Step 5: Solve for x
    x = 2,761,410.78/1,625.30
  6. Step 6: Final answer
    x = 1,699.02

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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.