Home / 2,190.60-3,285.99-1,095.66

Finding the Fourth Proportional to 2,190.60, 3,285.99 and 1,095.66

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Solution

The fourth proportional to 2,190.60, 3,285.99 and 1,095.66 is: 1,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.60 : 3,285.99 = 1,095.66 : x
  2. Step 2: Convert to fraction form
    2,190.60/3,285.99 = 1,095.66/x
  3. Step 3: Cross multiply
    2,190.60x = 3,285.99 × 1,095.66
  4. Step 4: Simplify right side
    2,190.60x = 3,600,327.80
  5. Step 5: Solve for x
    x = 3,600,327.80/2,190.60
  6. Step 6: Final answer
    x = 1,643.54

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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.