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Finding the Fourth Proportional to 2,855.80, 4,301.04 and 2,513.64

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Solution

The fourth proportional to 2,855.80, 4,301.04 and 2,513.64 is: 3,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.80 : 4,301.04 = 2,513.64 : x
  2. Step 2: Convert to fraction form
    2,855.80/4,301.04 = 2,513.64/x
  3. Step 3: Cross multiply
    2,855.80x = 4,301.04 × 2,513.64
  4. Step 4: Simplify right side
    2,855.80x = 10,811,291.74
  5. Step 5: Solve for x
    x = 10,811,291.74/2,855.80
  6. Step 6: Final answer
    x = 3,785.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.