Home / 5,911.79-8,157.78-3,393.09

Finding the Fourth Proportional to 5,911.79, 8,157.78 and 3,393.09

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Solution

The fourth proportional to 5,911.79, 8,157.78 and 3,393.09 is: 4,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.79 : 8,157.78 = 3,393.09 : x
  2. Step 2: Convert to fraction form
    5,911.79/8,157.78 = 3,393.09/x
  3. Step 3: Cross multiply
    5,911.79x = 8,157.78 × 3,393.09
  4. Step 4: Simplify right side
    5,911.79x = 27,680,081.74
  5. Step 5: Solve for x
    x = 27,680,081.74/5,911.79
  6. Step 6: Final answer
    x = 4,682.19

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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.