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Finding the Fourth Proportional to 3,490.91, 5,236.32 and 1,410.88

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Solution

The fourth proportional to 3,490.91, 5,236.32 and 1,410.88 is: 2,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.91 : 5,236.32 = 1,410.88 : x
  2. Step 2: Convert to fraction form
    3,490.91/5,236.32 = 1,410.88/x
  3. Step 3: Cross multiply
    3,490.91x = 5,236.32 × 1,410.88
  4. Step 4: Simplify right side
    3,490.91x = 7,387,824.58
  5. Step 5: Solve for x
    x = 7,387,824.58/3,490.91
  6. Step 6: Final answer
    x = 2,116.30

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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.