Home / 3,686.56-5,087.40-2,007.92

Finding the Fourth Proportional to 3,686.56, 5,087.40 and 2,007.92

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Solution

The fourth proportional to 3,686.56, 5,087.40 and 2,007.92 is: 2,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.56 : 5,087.40 = 2,007.92 : x
  2. Step 2: Convert to fraction form
    3,686.56/5,087.40 = 2,007.92/x
  3. Step 3: Cross multiply
    3,686.56x = 5,087.40 × 2,007.92
  4. Step 4: Simplify right side
    3,686.56x = 10,215,092.21
  5. Step 5: Solve for x
    x = 10,215,092.21/3,686.56
  6. Step 6: Final answer
    x = 2,770.90

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1.5x scale

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.