Home / 3,686.42-5,087.15-2,007.79

Finding the Fourth Proportional to 3,686.42, 5,087.15 and 2,007.79

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Solution

The fourth proportional to 3,686.42, 5,087.15 and 2,007.79 is: 2,770.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.42 : 5,087.15 = 2,007.79 : x
  2. Step 2: Convert to fraction form
    3,686.42/5,087.15 = 2,007.79/x
  3. Step 3: Cross multiply
    3,686.42x = 5,087.15 × 2,007.79
  4. Step 4: Simplify right side
    3,686.42x = 10,213,893.42
  5. Step 5: Solve for x
    x = 10,213,893.42/3,686.42
  6. Step 6: Final answer
    x = 2,770.68

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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.