Home / 3,110.73-4,280.22-3,036.90

Finding the Fourth Proportional to 3,110.73, 4,280.22 and 3,036.90

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Solution

The fourth proportional to 3,110.73, 4,280.22 and 3,036.90 is: 4,178.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.73 : 4,280.22 = 3,036.90 : x
  2. Step 2: Convert to fraction form
    3,110.73/4,280.22 = 3,036.90/x
  3. Step 3: Cross multiply
    3,110.73x = 4,280.22 × 3,036.90
  4. Step 4: Simplify right side
    3,110.73x = 12,998,600.12
  5. Step 5: Solve for x
    x = 12,998,600.12/3,110.73
  6. Step 6: Final answer
    x = 4,178.63

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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.