Home / 4,091.60-6,121.32-3,160.08

Finding the Fourth Proportional to 4,091.60, 6,121.32 and 3,160.08

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Solution

The fourth proportional to 4,091.60, 6,121.32 and 3,160.08 is: 4,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.60 : 6,121.32 = 3,160.08 : x
  2. Step 2: Convert to fraction form
    4,091.60/6,121.32 = 3,160.08/x
  3. Step 3: Cross multiply
    4,091.60x = 6,121.32 × 3,160.08
  4. Step 4: Simplify right side
    4,091.60x = 19,343,860.91
  5. Step 5: Solve for x
    x = 19,343,860.91/4,091.60
  6. Step 6: Final answer
    x = 4,727.70

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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.