Home / 1,705.32-2,556.68-1,531.47

Finding the Fourth Proportional to 1,705.32, 2,556.68 and 1,531.47

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Solution

The fourth proportional to 1,705.32, 2,556.68 and 1,531.47 is: 2,296.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.32 : 2,556.68 = 1,531.47 : x
  2. Step 2: Convert to fraction form
    1,705.32/2,556.68 = 1,531.47/x
  3. Step 3: Cross multiply
    1,705.32x = 2,556.68 × 1,531.47
  4. Step 4: Simplify right side
    1,705.32x = 3,915,472.33
  5. Step 5: Solve for x
    x = 3,915,472.33/1,705.32
  6. Step 6: Final answer
    x = 2,296.03

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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.