Home / 4,518.12-6,720.39-4,146.33

Finding the Fourth Proportional to 4,518.12, 6,720.39 and 4,146.33

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Solution

The fourth proportional to 4,518.12, 6,720.39 and 4,146.33 is: 6,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.12 : 6,720.39 = 4,146.33 : x
  2. Step 2: Convert to fraction form
    4,518.12/6,720.39 = 4,146.33/x
  3. Step 3: Cross multiply
    4,518.12x = 6,720.39 × 4,146.33
  4. Step 4: Simplify right side
    4,518.12x = 27,864,954.67
  5. Step 5: Solve for x
    x = 27,864,954.67/4,518.12
  6. Step 6: Final answer
    x = 6,167.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.