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Finding the Fourth Proportional to 2,802.76, 3,866.24 and 2,006.28

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Solution

The fourth proportional to 2,802.76, 3,866.24 and 2,006.28 is: 2,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.76 : 3,866.24 = 2,006.28 : x
  2. Step 2: Convert to fraction form
    2,802.76/3,866.24 = 2,006.28/x
  3. Step 3: Cross multiply
    2,802.76x = 3,866.24 × 2,006.28
  4. Step 4: Simplify right side
    2,802.76x = 7,756,759.99
  5. Step 5: Solve for x
    x = 7,756,759.99/2,802.76
  6. Step 6: Final answer
    x = 2,767.54

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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.