Home / 1,745.82-2,615.28-1,331.88

Finding the Fourth Proportional to 1,745.82, 2,615.28 and 1,331.88

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Solution

The fourth proportional to 1,745.82, 2,615.28 and 1,331.88 is: 1,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.82 : 2,615.28 = 1,331.88 : x
  2. Step 2: Convert to fraction form
    1,745.82/2,615.28 = 1,331.88/x
  3. Step 3: Cross multiply
    1,745.82x = 2,615.28 × 1,331.88
  4. Step 4: Simplify right side
    1,745.82x = 3,483,239.13
  5. Step 5: Solve for x
    x = 3,483,239.13/1,745.82
  6. Step 6: Final answer
    x = 1,995.19

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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.