Home / 3,111.13-4,660.39-1,442.91

Finding the Fourth Proportional to 3,111.13, 4,660.39 and 1,442.91

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Solution

The fourth proportional to 3,111.13, 4,660.39 and 1,442.91 is: 2,161.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.13 : 4,660.39 = 1,442.91 : x
  2. Step 2: Convert to fraction form
    3,111.13/4,660.39 = 1,442.91/x
  3. Step 3: Cross multiply
    3,111.13x = 4,660.39 × 1,442.91
  4. Step 4: Simplify right side
    3,111.13x = 6,724,523.33
  5. Step 5: Solve for x
    x = 6,724,523.33/3,111.13
  6. Step 6: Final answer
    x = 2,161.44

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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.