Home / 3,719.38-5,577.76-1,086.18

Finding the Fourth Proportional to 3,719.38, 5,577.76 and 1,086.18

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Solution

The fourth proportional to 3,719.38, 5,577.76 and 1,086.18 is: 1,628.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.38 : 5,577.76 = 1,086.18 : x
  2. Step 2: Convert to fraction form
    3,719.38/5,577.76 = 1,086.18/x
  3. Step 3: Cross multiply
    3,719.38x = 5,577.76 × 1,086.18
  4. Step 4: Simplify right side
    3,719.38x = 6,058,451.36
  5. Step 5: Solve for x
    x = 6,058,451.36/3,719.38
  6. Step 6: Final answer
    x = 1,628.89

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1.5x scale

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.