Home / 3,197.80-4,409.70-3,126.28

Finding the Fourth Proportional to 3,197.80, 4,409.70 and 3,126.28

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Solution

The fourth proportional to 3,197.80, 4,409.70 and 3,126.28 is: 4,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.80 : 4,409.70 = 3,126.28 : x
  2. Step 2: Convert to fraction form
    3,197.80/4,409.70 = 3,126.28/x
  3. Step 3: Cross multiply
    3,197.80x = 4,409.70 × 3,126.28
  4. Step 4: Simplify right side
    3,197.80x = 13,785,956.92
  5. Step 5: Solve for x
    x = 13,785,956.92/3,197.80
  6. Step 6: Final answer
    x = 4,311.08

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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.