Home / 4,085.90-6,124.94-1,310.78

Finding the Fourth Proportional to 4,085.90, 6,124.94 and 1,310.78

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Solution

The fourth proportional to 4,085.90, 6,124.94 and 1,310.78 is: 1,964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.90 : 6,124.94 = 1,310.78 : x
  2. Step 2: Convert to fraction form
    4,085.90/6,124.94 = 1,310.78/x
  3. Step 3: Cross multiply
    4,085.90x = 6,124.94 × 1,310.78
  4. Step 4: Simplify right side
    4,085.90x = 8,028,448.85
  5. Step 5: Solve for x
    x = 8,028,448.85/4,085.90
  6. Step 6: Final answer
    x = 1,964.92

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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.