Home / 3,772.45-5,206.51-3,142.07

Finding the Fourth Proportional to 3,772.45, 5,206.51 and 3,142.07

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Solution

The fourth proportional to 3,772.45, 5,206.51 and 3,142.07 is: 4,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.45 : 5,206.51 = 3,142.07 : x
  2. Step 2: Convert to fraction form
    3,772.45/5,206.51 = 3,142.07/x
  3. Step 3: Cross multiply
    3,772.45x = 5,206.51 × 3,142.07
  4. Step 4: Simplify right side
    3,772.45x = 16,359,218.88
  5. Step 5: Solve for x
    x = 16,359,218.88/3,772.45
  6. Step 6: Final answer
    x = 4,336.50

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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.