Home / 4,121.85-6,185.88-3,543.51

Finding the Fourth Proportional to 4,121.85, 6,185.88 and 3,543.51

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Solution

The fourth proportional to 4,121.85, 6,185.88 and 3,543.51 is: 5,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.85 : 6,185.88 = 3,543.51 : x
  2. Step 2: Convert to fraction form
    4,121.85/6,185.88 = 3,543.51/x
  3. Step 3: Cross multiply
    4,121.85x = 6,185.88 × 3,543.51
  4. Step 4: Simplify right side
    4,121.85x = 21,919,727.64
  5. Step 5: Solve for x
    x = 21,919,727.64/4,121.85
  6. Step 6: Final answer
    x = 5,317.93

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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.