Home / 3,078.96-4,246.13-2,085.70

Finding the Fourth Proportional to 3,078.96, 4,246.13 and 2,085.70

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Solution

The fourth proportional to 3,078.96, 4,246.13 and 2,085.70 is: 2,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.96 : 4,246.13 = 2,085.70 : x
  2. Step 2: Convert to fraction form
    3,078.96/4,246.13 = 2,085.70/x
  3. Step 3: Cross multiply
    3,078.96x = 4,246.13 × 2,085.70
  4. Step 4: Simplify right side
    3,078.96x = 8,856,153.34
  5. Step 5: Solve for x
    x = 8,856,153.34/3,078.96
  6. Step 6: Final answer
    x = 2,876.35

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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.