Home / 2,190.64-3,285.96-1,095.52

Finding the Fourth Proportional to 2,190.64, 3,285.96 and 1,095.52

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Solution

The fourth proportional to 2,190.64, 3,285.96 and 1,095.52 is: 1,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.64 : 3,285.96 = 1,095.52 : x
  2. Step 2: Convert to fraction form
    2,190.64/3,285.96 = 1,095.52/x
  3. Step 3: Cross multiply
    2,190.64x = 3,285.96 × 1,095.52
  4. Step 4: Simplify right side
    2,190.64x = 3,599,834.90
  5. Step 5: Solve for x
    x = 3,599,834.90/2,190.64
  6. Step 6: Final answer
    x = 1,643.28

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Double scale
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Similar ratio
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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.