Home / 1,727.40-2,388.42-1,508.70

Finding the Fourth Proportional to 1,727.40, 2,388.42 and 1,508.70

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Solution

The fourth proportional to 1,727.40, 2,388.42 and 1,508.70 is: 2,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.40 : 2,388.42 = 1,508.70 : x
  2. Step 2: Convert to fraction form
    1,727.40/2,388.42 = 1,508.70/x
  3. Step 3: Cross multiply
    1,727.40x = 2,388.42 × 1,508.70
  4. Step 4: Simplify right side
    1,727.40x = 3,603,409.25
  5. Step 5: Solve for x
    x = 3,603,409.25/1,727.40
  6. Step 6: Final answer
    x = 2,086.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.