Home / 2,961.16-4,086.90-1,719.88

Finding the Fourth Proportional to 2,961.16, 4,086.90 and 1,719.88

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Solution

The fourth proportional to 2,961.16, 4,086.90 and 1,719.88 is: 2,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.16 : 4,086.90 = 1,719.88 : x
  2. Step 2: Convert to fraction form
    2,961.16/4,086.90 = 1,719.88/x
  3. Step 3: Cross multiply
    2,961.16x = 4,086.90 × 1,719.88
  4. Step 4: Simplify right side
    2,961.16x = 7,028,977.57
  5. Step 5: Solve for x
    x = 7,028,977.57/2,961.16
  6. Step 6: Final answer
    x = 2,373.72

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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.