Home / 3,686.12-5,086.90-2,007.55

Finding the Fourth Proportional to 3,686.12, 5,086.90 and 2,007.55

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Solution

The fourth proportional to 3,686.12, 5,086.90 and 2,007.55 is: 2,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.12 : 5,086.90 = 2,007.55 : x
  2. Step 2: Convert to fraction form
    3,686.12/5,086.90 = 2,007.55/x
  3. Step 3: Cross multiply
    3,686.12x = 5,086.90 × 2,007.55
  4. Step 4: Simplify right side
    3,686.12x = 10,212,206.10
  5. Step 5: Solve for x
    x = 10,212,206.10/3,686.12
  6. Step 6: Final answer
    x = 2,770.45

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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.