Home / 5,212.64-7,193.43-3,116.78

Finding the Fourth Proportional to 5,212.64, 7,193.43 and 3,116.78

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Solution

The fourth proportional to 5,212.64, 7,193.43 and 3,116.78 is: 4,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.64 : 7,193.43 = 3,116.78 : x
  2. Step 2: Convert to fraction form
    5,212.64/7,193.43 = 3,116.78/x
  3. Step 3: Cross multiply
    5,212.64x = 7,193.43 × 3,116.78
  4. Step 4: Simplify right side
    5,212.64x = 22,420,338.76
  5. Step 5: Solve for x
    x = 22,420,338.76/5,212.64
  6. Step 6: Final answer
    x = 4,301.15

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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.