Home / 5,034.78-6,942.58-3,145.68

Finding the Fourth Proportional to 5,034.78, 6,942.58 and 3,145.68

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Solution

The fourth proportional to 5,034.78, 6,942.58 and 3,145.68 is: 4,337.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,034.78 : 6,942.58 = 3,145.68 : x
  2. Step 2: Convert to fraction form
    5,034.78/6,942.58 = 3,145.68/x
  3. Step 3: Cross multiply
    5,034.78x = 6,942.58 × 3,145.68
  4. Step 4: Simplify right side
    5,034.78x = 21,839,108.21
  5. Step 5: Solve for x
    x = 21,839,108.21/5,034.78
  6. Step 6: Final answer
    x = 4,337.65

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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.