Home / 2,760.90-4,141.81-1,281.60

Finding the Fourth Proportional to 2,760.90, 4,141.81 and 1,281.60

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Solution

The fourth proportional to 2,760.90, 4,141.81 and 1,281.60 is: 1,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.90 : 4,141.81 = 1,281.60 : x
  2. Step 2: Convert to fraction form
    2,760.90/4,141.81 = 1,281.60/x
  3. Step 3: Cross multiply
    2,760.90x = 4,141.81 × 1,281.60
  4. Step 4: Simplify right side
    2,760.90x = 5,308,143.70
  5. Step 5: Solve for x
    x = 5,308,143.70/2,760.90
  6. Step 6: Final answer
    x = 1,922.62

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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.