Home / 2,961.76-4,087.62-1,719.76

Finding the Fourth Proportional to 2,961.76, 4,087.62 and 1,719.76

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Solution

The fourth proportional to 2,961.76, 4,087.62 and 1,719.76 is: 2,373.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.76 : 4,087.62 = 1,719.76 : x
  2. Step 2: Convert to fraction form
    2,961.76/4,087.62 = 1,719.76/x
  3. Step 3: Cross multiply
    2,961.76x = 4,087.62 × 1,719.76
  4. Step 4: Simplify right side
    2,961.76x = 7,029,725.37
  5. Step 5: Solve for x
    x = 7,029,725.37/2,961.76
  6. Step 6: Final answer
    x = 2,373.50

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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.