Home / 5,214.45-7,195.85-2,856.58

Finding the Fourth Proportional to 5,214.45, 7,195.85 and 2,856.58

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Solution

The fourth proportional to 5,214.45, 7,195.85 and 2,856.58 is: 3,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.45 : 7,195.85 = 2,856.58 : x
  2. Step 2: Convert to fraction form
    5,214.45/7,195.85 = 2,856.58/x
  3. Step 3: Cross multiply
    5,214.45x = 7,195.85 × 2,856.58
  4. Step 4: Simplify right side
    5,214.45x = 20,555,521.19
  5. Step 5: Solve for x
    x = 20,555,521.19/5,214.45
  6. Step 6: Final answer
    x = 3,942.03

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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.