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Finding the Fourth Proportional to 2,798.77, 3,860.33 and 2,425.09

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Solution

The fourth proportional to 2,798.77, 3,860.33 and 2,425.09 is: 3,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.77 : 3,860.33 = 2,425.09 : x
  2. Step 2: Convert to fraction form
    2,798.77/3,860.33 = 2,425.09/x
  3. Step 3: Cross multiply
    2,798.77x = 3,860.33 × 2,425.09
  4. Step 4: Simplify right side
    2,798.77x = 9,361,633.14
  5. Step 5: Solve for x
    x = 9,361,633.14/2,798.77
  6. Step 6: Final answer
    x = 3,344.91

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Half scale
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Double scale
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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.