Home / 2,680.60-4,022.10-1,293.40

Finding the Fourth Proportional to 2,680.60, 4,022.10 and 1,293.40

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Solution

The fourth proportional to 2,680.60, 4,022.10 and 1,293.40 is: 1,940.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.60 : 4,022.10 = 1,293.40 : x
  2. Step 2: Convert to fraction form
    2,680.60/4,022.10 = 1,293.40/x
  3. Step 3: Cross multiply
    2,680.60x = 4,022.10 × 1,293.40
  4. Step 4: Simplify right side
    2,680.60x = 5,202,184.14
  5. Step 5: Solve for x
    x = 5,202,184.14/2,680.60
  6. Step 6: Final answer
    x = 1,940.68

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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.