Home / 1,961.29-2,699.76-1,712.17

Finding the Fourth Proportional to 1,961.29, 2,699.76 and 1,712.17

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Solution

The fourth proportional to 1,961.29, 2,699.76 and 1,712.17 is: 2,356.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.29 : 2,699.76 = 1,712.17 : x
  2. Step 2: Convert to fraction form
    1,961.29/2,699.76 = 1,712.17/x
  3. Step 3: Cross multiply
    1,961.29x = 2,699.76 × 1,712.17
  4. Step 4: Simplify right side
    1,961.29x = 4,622,448.08
  5. Step 5: Solve for x
    x = 4,622,448.08/1,961.29
  6. Step 6: Final answer
    x = 2,356.84

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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.