Home / 1,717.44-2,575.98-485.07

Finding the Fourth Proportional to 1,717.44, 2,575.98 and 485.07

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Solution

The fourth proportional to 1,717.44, 2,575.98 and 485.07 is: 727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.44 : 2,575.98 = 485.07 : x
  2. Step 2: Convert to fraction form
    1,717.44/2,575.98 = 485.07/x
  3. Step 3: Cross multiply
    1,717.44x = 2,575.98 × 485.07
  4. Step 4: Simplify right side
    1,717.44x = 1,249,530.62
  5. Step 5: Solve for x
    x = 1,249,530.62/1,717.44
  6. Step 6: Final answer
    x = 727.55

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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.