Home / 3,908.34-5,393.58-2,315.04

Finding the Fourth Proportional to 3,908.34, 5,393.58 and 2,315.04

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Solution

The fourth proportional to 3,908.34, 5,393.58 and 2,315.04 is: 3,194.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.34 : 5,393.58 = 2,315.04 : x
  2. Step 2: Convert to fraction form
    3,908.34/5,393.58 = 2,315.04/x
  3. Step 3: Cross multiply
    3,908.34x = 5,393.58 × 2,315.04
  4. Step 4: Simplify right side
    3,908.34x = 12,486,353.44
  5. Step 5: Solve for x
    x = 12,486,353.44/3,908.34
  6. Step 6: Final answer
    x = 3,194.80

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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.