Home / 3,774.91-5,214.39-3,147.52

Finding the Fourth Proportional to 3,774.91, 5,214.39 and 3,147.52

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Solution

The fourth proportional to 3,774.91, 5,214.39 and 3,147.52 is: 4,347.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,774.91 : 5,214.39 = 3,147.52 : x
  2. Step 2: Convert to fraction form
    3,774.91/5,214.39 = 3,147.52/x
  3. Step 3: Cross multiply
    3,774.91x = 5,214.39 × 3,147.52
  4. Step 4: Simplify right side
    3,774.91x = 16,412,396.81
  5. Step 5: Solve for x
    x = 16,412,396.81/3,774.91
  6. Step 6: Final answer
    x = 4,347.76

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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.