Home / 6,209.40-8,568.13-3,690.59

Finding the Fourth Proportional to 6,209.40, 8,568.13 and 3,690.59

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Solution

The fourth proportional to 6,209.40, 8,568.13 and 3,690.59 is: 5,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,209.40 : 8,568.13 = 3,690.59 : x
  2. Step 2: Convert to fraction form
    6,209.40/8,568.13 = 3,690.59/x
  3. Step 3: Cross multiply
    6,209.40x = 8,568.13 × 3,690.59
  4. Step 4: Simplify right side
    6,209.40x = 31,621,454.90
  5. Step 5: Solve for x
    x = 31,621,454.90/6,209.40
  6. Step 6: Final answer
    x = 5,092.51

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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.