Home / 4,121.23-6,181.20-1,347.91

Finding the Fourth Proportional to 4,121.23, 6,181.20 and 1,347.91

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Solution

The fourth proportional to 4,121.23, 6,181.20 and 1,347.91 is: 2,021.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.23 : 6,181.20 = 1,347.91 : x
  2. Step 2: Convert to fraction form
    4,121.23/6,181.20 = 1,347.91/x
  3. Step 3: Cross multiply
    4,121.23x = 6,181.20 × 1,347.91
  4. Step 4: Simplify right side
    4,121.23x = 8,331,720.11
  5. Step 5: Solve for x
    x = 8,331,720.11/4,121.23
  6. Step 6: Final answer
    x = 2,021.66

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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.