Home / 4,121.66-5,688.42-3,006.30

Finding the Fourth Proportional to 4,121.66, 5,688.42 and 3,006.30

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Solution

The fourth proportional to 4,121.66, 5,688.42 and 3,006.30 is: 4,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.66 : 5,688.42 = 3,006.30 : x
  2. Step 2: Convert to fraction form
    4,121.66/5,688.42 = 3,006.30/x
  3. Step 3: Cross multiply
    4,121.66x = 5,688.42 × 3,006.30
  4. Step 4: Simplify right side
    4,121.66x = 17,101,097.05
  5. Step 5: Solve for x
    x = 17,101,097.05/4,121.66
  6. Step 6: Final answer
    x = 4,149.08

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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.