Home / 3,836.30-5,294.23-2,157.64

Finding the Fourth Proportional to 3,836.30, 5,294.23 and 2,157.64

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Solution

The fourth proportional to 3,836.30, 5,294.23 and 2,157.64 is: 2,977.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.30 : 5,294.23 = 2,157.64 : x
  2. Step 2: Convert to fraction form
    3,836.30/5,294.23 = 2,157.64/x
  3. Step 3: Cross multiply
    3,836.30x = 5,294.23 × 2,157.64
  4. Step 4: Simplify right side
    3,836.30x = 11,423,023.79
  5. Step 5: Solve for x
    x = 11,423,023.79/3,836.30
  6. Step 6: Final answer
    x = 2,977.62

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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.