Home / 5,214.20-7,196.31-2,976.28

Finding the Fourth Proportional to 5,214.20, 7,196.31 and 2,976.28

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Solution

The fourth proportional to 5,214.20, 7,196.31 and 2,976.28 is: 4,107.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.20 : 7,196.31 = 2,976.28 : x
  2. Step 2: Convert to fraction form
    5,214.20/7,196.31 = 2,976.28/x
  3. Step 3: Cross multiply
    5,214.20x = 7,196.31 × 2,976.28
  4. Step 4: Simplify right side
    5,214.20x = 21,418,215.54
  5. Step 5: Solve for x
    x = 21,418,215.54/5,214.20
  6. Step 6: Final answer
    x = 4,107.67

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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.