Home / 1,724.80-2,587.62-1,231.51

Finding the Fourth Proportional to 1,724.80, 2,587.62 and 1,231.51

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Solution

The fourth proportional to 1,724.80, 2,587.62 and 1,231.51 is: 1,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.80 : 2,587.62 = 1,231.51 : x
  2. Step 2: Convert to fraction form
    1,724.80/2,587.62 = 1,231.51/x
  3. Step 3: Cross multiply
    1,724.80x = 2,587.62 × 1,231.51
  4. Step 4: Simplify right side
    1,724.80x = 3,186,679.91
  5. Step 5: Solve for x
    x = 3,186,679.91/1,724.80
  6. Step 6: Final answer
    x = 1,847.56

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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.