Home / 2,185.68-3,276.20-1,490.62

Finding the Fourth Proportional to 2,185.68, 3,276.20 and 1,490.62

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Solution

The fourth proportional to 2,185.68, 3,276.20 and 1,490.62 is: 2,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.68 : 3,276.20 = 1,490.62 : x
  2. Step 2: Convert to fraction form
    2,185.68/3,276.20 = 1,490.62/x
  3. Step 3: Cross multiply
    2,185.68x = 3,276.20 × 1,490.62
  4. Step 4: Simplify right side
    2,185.68x = 4,883,569.24
  5. Step 5: Solve for x
    x = 4,883,569.24/2,185.68
  6. Step 6: Final answer
    x = 2,234.35

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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.