Home / 3,455.09-5,170.30-2,766.18

Finding the Fourth Proportional to 3,455.09, 5,170.30 and 2,766.18

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Solution

The fourth proportional to 3,455.09, 5,170.30 and 2,766.18 is: 4,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.09 : 5,170.30 = 2,766.18 : x
  2. Step 2: Convert to fraction form
    3,455.09/5,170.30 = 2,766.18/x
  3. Step 3: Cross multiply
    3,455.09x = 5,170.30 × 2,766.18
  4. Step 4: Simplify right side
    3,455.09x = 14,301,992.93
  5. Step 5: Solve for x
    x = 14,301,992.93/3,455.09
  6. Step 6: Final answer
    x = 4,139.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.