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Finding the Fourth Proportional to 2,730.76, 3,763.86 and 2,206.60

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Solution

The fourth proportional to 2,730.76, 3,763.86 and 2,206.60 is: 3,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.76 : 3,763.86 = 2,206.60 : x
  2. Step 2: Convert to fraction form
    2,730.76/3,763.86 = 2,206.60/x
  3. Step 3: Cross multiply
    2,730.76x = 3,763.86 × 2,206.60
  4. Step 4: Simplify right side
    2,730.76x = 8,305,333.48
  5. Step 5: Solve for x
    x = 8,305,333.48/2,730.76
  6. Step 6: Final answer
    x = 3,041.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.