Home / 1,728.19-2,587.49-1,110.36

Finding the Fourth Proportional to 1,728.19, 2,587.49 and 1,110.36

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Solution

The fourth proportional to 1,728.19, 2,587.49 and 1,110.36 is: 1,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.19 : 2,587.49 = 1,110.36 : x
  2. Step 2: Convert to fraction form
    1,728.19/2,587.49 = 1,110.36/x
  3. Step 3: Cross multiply
    1,728.19x = 2,587.49 × 1,110.36
  4. Step 4: Simplify right side
    1,728.19x = 2,873,045.40
  5. Step 5: Solve for x
    x = 2,873,045.40/1,728.19
  6. Step 6: Final answer
    x = 1,662.46

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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.