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Finding the Fourth Proportional to 2,800.98, 3,866.13 and 1,622.52

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Solution

The fourth proportional to 2,800.98, 3,866.13 and 1,622.52 is: 2,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.98 : 3,866.13 = 1,622.52 : x
  2. Step 2: Convert to fraction form
    2,800.98/3,866.13 = 1,622.52/x
  3. Step 3: Cross multiply
    2,800.98x = 3,866.13 × 1,622.52
  4. Step 4: Simplify right side
    2,800.98x = 6,272,873.25
  5. Step 5: Solve for x
    x = 6,272,873.25/2,800.98
  6. Step 6: Final answer
    x = 2,239.53

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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.