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Finding the Fourth Proportional to 3,385.91, 4,662.16 and 2,963.90

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Solution

The fourth proportional to 3,385.91, 4,662.16 and 2,963.90 is: 4,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.91 : 4,662.16 = 2,963.90 : x
  2. Step 2: Convert to fraction form
    3,385.91/4,662.16 = 2,963.90/x
  3. Step 3: Cross multiply
    3,385.91x = 4,662.16 × 2,963.90
  4. Step 4: Simplify right side
    3,385.91x = 13,818,152.71
  5. Step 5: Solve for x
    x = 13,818,152.71/3,385.91
  6. Step 6: Final answer
    x = 4,081.08

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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.