Home / 6,142.40-9,214.72-3,221.52

Finding the Fourth Proportional to 6,142.40, 9,214.72 and 3,221.52

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Solution

The fourth proportional to 6,142.40, 9,214.72 and 3,221.52 is: 4,832.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.40 : 9,214.72 = 3,221.52 : x
  2. Step 2: Convert to fraction form
    6,142.40/9,214.72 = 3,221.52/x
  3. Step 3: Cross multiply
    6,142.40x = 9,214.72 × 3,221.52
  4. Step 4: Simplify right side
    6,142.40x = 29,685,404.77
  5. Step 5: Solve for x
    x = 29,685,404.77/6,142.40
  6. Step 6: Final answer
    x = 4,832.87

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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.