Home / 1,721.48-2,585.25-1,282.85

Finding the Fourth Proportional to 1,721.48, 2,585.25 and 1,282.85

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Solution

The fourth proportional to 1,721.48, 2,585.25 and 1,282.85 is: 1,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.48 : 2,585.25 = 1,282.85 : x
  2. Step 2: Convert to fraction form
    1,721.48/2,585.25 = 1,282.85/x
  3. Step 3: Cross multiply
    1,721.48x = 2,585.25 × 1,282.85
  4. Step 4: Simplify right side
    1,721.48x = 3,316,487.96
  5. Step 5: Solve for x
    x = 3,316,487.96/1,721.48
  6. Step 6: Final answer
    x = 1,926.53

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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.