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Finding the Fourth Proportional to 3,077.91, 4,612.91 and 2,680.96

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Solution

The fourth proportional to 3,077.91, 4,612.91 and 2,680.96 is: 4,018.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.91 : 4,612.91 = 2,680.96 : x
  2. Step 2: Convert to fraction form
    3,077.91/4,612.91 = 2,680.96/x
  3. Step 3: Cross multiply
    3,077.91x = 4,612.91 × 2,680.96
  4. Step 4: Simplify right side
    3,077.91x = 12,367,027.19
  5. Step 5: Solve for x
    x = 12,367,027.19/3,077.91
  6. Step 6: Final answer
    x = 4,018.00

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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.