Home / 6,743.40-9,305.12-3,910.18

Finding the Fourth Proportional to 6,743.40, 9,305.12 and 3,910.18

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Solution

The fourth proportional to 6,743.40, 9,305.12 and 3,910.18 is: 5,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,743.40 : 9,305.12 = 3,910.18 : x
  2. Step 2: Convert to fraction form
    6,743.40/9,305.12 = 3,910.18/x
  3. Step 3: Cross multiply
    6,743.40x = 9,305.12 × 3,910.18
  4. Step 4: Simplify right side
    6,743.40x = 36,384,674.57
  5. Step 5: Solve for x
    x = 36,384,674.57/6,743.40
  6. Step 6: Final answer
    x = 5,395.60

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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.