Home / 3,902.34-5,385.30-2,331.32

Finding the Fourth Proportional to 3,902.34, 5,385.30 and 2,331.32

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Solution

The fourth proportional to 3,902.34, 5,385.30 and 2,331.32 is: 3,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.34 : 5,385.30 = 2,331.32 : x
  2. Step 2: Convert to fraction form
    3,902.34/5,385.30 = 2,331.32/x
  3. Step 3: Cross multiply
    3,902.34x = 5,385.30 × 2,331.32
  4. Step 4: Simplify right side
    3,902.34x = 12,554,857.60
  5. Step 5: Solve for x
    x = 12,554,857.60/3,902.34
  6. Step 6: Final answer
    x = 3,217.26

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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.