Home / 2,939.17-4,407.74-1,379.91

Finding the Fourth Proportional to 2,939.17, 4,407.74 and 1,379.91

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Solution

The fourth proportional to 2,939.17, 4,407.74 and 1,379.91 is: 2,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.17 : 4,407.74 = 1,379.91 : x
  2. Step 2: Convert to fraction form
    2,939.17/4,407.74 = 1,379.91/x
  3. Step 3: Cross multiply
    2,939.17x = 4,407.74 × 1,379.91
  4. Step 4: Simplify right side
    2,939.17x = 6,082,282.78
  5. Step 5: Solve for x
    x = 6,082,282.78/2,939.17
  6. Step 6: Final answer
    x = 2,069.39

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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.