Home / 5,356.96-7,392.19-2,998.78

Finding the Fourth Proportional to 5,356.96, 7,392.19 and 2,998.78

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Solution

The fourth proportional to 5,356.96, 7,392.19 and 2,998.78 is: 4,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.96 : 7,392.19 = 2,998.78 : x
  2. Step 2: Convert to fraction form
    5,356.96/7,392.19 = 2,998.78/x
  3. Step 3: Cross multiply
    5,356.96x = 7,392.19 × 2,998.78
  4. Step 4: Simplify right side
    5,356.96x = 22,167,499.57
  5. Step 5: Solve for x
    x = 22,167,499.57/5,356.96
  6. Step 6: Final answer
    x = 4,138.08

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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.