Home / 3,426.16-5,139.68-1,235.12

Finding the Fourth Proportional to 3,426.16, 5,139.68 and 1,235.12

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Solution

The fourth proportional to 3,426.16, 5,139.68 and 1,235.12 is: 1,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.16 : 5,139.68 = 1,235.12 : x
  2. Step 2: Convert to fraction form
    3,426.16/5,139.68 = 1,235.12/x
  3. Step 3: Cross multiply
    3,426.16x = 5,139.68 × 1,235.12
  4. Step 4: Simplify right side
    3,426.16x = 6,348,121.56
  5. Step 5: Solve for x
    x = 6,348,121.56/3,426.16
  6. Step 6: Final answer
    x = 1,852.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.