Home / 3,685.74-5,086.34-2,007.21

Finding the Fourth Proportional to 3,685.74, 5,086.34 and 2,007.21

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Solution

The fourth proportional to 3,685.74, 5,086.34 and 2,007.21 is: 2,769.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.74 : 5,086.34 = 2,007.21 : x
  2. Step 2: Convert to fraction form
    3,685.74/5,086.34 = 2,007.21/x
  3. Step 3: Cross multiply
    3,685.74x = 5,086.34 × 2,007.21
  4. Step 4: Simplify right side
    3,685.74x = 10,209,342.48
  5. Step 5: Solve for x
    x = 10,209,342.48/3,685.74
  6. Step 6: Final answer
    x = 2,769.96

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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.