Home / 4,942.13-6,820.13-3,079.13

Finding the Fourth Proportional to 4,942.13, 6,820.13 and 3,079.13

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Solution

The fourth proportional to 4,942.13, 6,820.13 and 3,079.13 is: 4,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.13 : 6,820.13 = 3,079.13 : x
  2. Step 2: Convert to fraction form
    4,942.13/6,820.13 = 3,079.13/x
  3. Step 3: Cross multiply
    4,942.13x = 6,820.13 × 3,079.13
  4. Step 4: Simplify right side
    4,942.13x = 21,000,040.48
  5. Step 5: Solve for x
    x = 21,000,040.48/4,942.13
  6. Step 6: Final answer
    x = 4,249.19

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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.