Home / 2,645.13-3,961.41-1,717.81

Finding the Fourth Proportional to 2,645.13, 3,961.41 and 1,717.81

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Solution

The fourth proportional to 2,645.13, 3,961.41 and 1,717.81 is: 2,572.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.13 : 3,961.41 = 1,717.81 : x
  2. Step 2: Convert to fraction form
    2,645.13/3,961.41 = 1,717.81/x
  3. Step 3: Cross multiply
    2,645.13x = 3,961.41 × 1,717.81
  4. Step 4: Simplify right side
    2,645.13x = 6,804,949.71
  5. Step 5: Solve for x
    x = 6,804,949.71/2,645.13
  6. Step 6: Final answer
    x = 2,572.63

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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.