Home / 2,190.28-3,285.98-1,948.64

Finding the Fourth Proportional to 2,190.28, 3,285.98 and 1,948.64

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Solution

The fourth proportional to 2,190.28, 3,285.98 and 1,948.64 is: 2,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.28 : 3,285.98 = 1,948.64 : x
  2. Step 2: Convert to fraction form
    2,190.28/3,285.98 = 1,948.64/x
  3. Step 3: Cross multiply
    2,190.28x = 3,285.98 × 1,948.64
  4. Step 4: Simplify right side
    2,190.28x = 6,403,192.07
  5. Step 5: Solve for x
    x = 6,403,192.07/2,190.28
  6. Step 6: Final answer
    x = 2,923.46

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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.