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Finding the Fourth Proportional to 2,883.01, 3,980.51 and 2,209.62

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Solution

The fourth proportional to 2,883.01, 3,980.51 and 2,209.62 is: 3,050.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.01 : 3,980.51 = 2,209.62 : x
  2. Step 2: Convert to fraction form
    2,883.01/3,980.51 = 2,209.62/x
  3. Step 3: Cross multiply
    2,883.01x = 3,980.51 × 2,209.62
  4. Step 4: Simplify right side
    2,883.01x = 8,795,414.51
  5. Step 5: Solve for x
    x = 8,795,414.51/2,883.01
  6. Step 6: Final answer
    x = 3,050.77

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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.