Home / 1,727.58-2,589.80-631.17

Finding the Fourth Proportional to 1,727.58, 2,589.80 and 631.17

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Solution

The fourth proportional to 1,727.58, 2,589.80 and 631.17 is: 946.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.58 : 2,589.80 = 631.17 : x
  2. Step 2: Convert to fraction form
    1,727.58/2,589.80 = 631.17/x
  3. Step 3: Cross multiply
    1,727.58x = 2,589.80 × 631.17
  4. Step 4: Simplify right side
    1,727.58x = 1,634,600.91
  5. Step 5: Solve for x
    x = 1,634,600.91/1,727.58
  6. Step 6: Final answer
    x = 946.18

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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.