Home / 2,961.68-4,087.32-1,719.68

Finding the Fourth Proportional to 2,961.68, 4,087.32 and 1,719.68

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Solution

The fourth proportional to 2,961.68, 4,087.32 and 1,719.68 is: 2,373.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.68 : 4,087.32 = 1,719.68 : x
  2. Step 2: Convert to fraction form
    2,961.68/4,087.32 = 1,719.68/x
  3. Step 3: Cross multiply
    2,961.68x = 4,087.32 × 1,719.68
  4. Step 4: Simplify right side
    2,961.68x = 7,028,882.46
  5. Step 5: Solve for x
    x = 7,028,882.46/2,961.68
  6. Step 6: Final answer
    x = 2,373.28

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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.