Home / 4,178.26-6,288.31-3,143.62

Finding the Fourth Proportional to 4,178.26, 6,288.31 and 3,143.62

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Solution

The fourth proportional to 4,178.26, 6,288.31 and 3,143.62 is: 4,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.26 : 6,288.31 = 3,143.62 : x
  2. Step 2: Convert to fraction form
    4,178.26/6,288.31 = 3,143.62/x
  3. Step 3: Cross multiply
    4,178.26x = 6,288.31 × 3,143.62
  4. Step 4: Simplify right side
    4,178.26x = 19,768,057.08
  5. Step 5: Solve for x
    x = 19,768,057.08/4,178.26
  6. Step 6: Final answer
    x = 4,731.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.