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Finding the Fourth Proportional to 2,883.78, 3,979.29 and 1,624.74

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Solution

The fourth proportional to 2,883.78, 3,979.29 and 1,624.74 is: 2,241.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.78 : 3,979.29 = 1,624.74 : x
  2. Step 2: Convert to fraction form
    2,883.78/3,979.29 = 1,624.74/x
  3. Step 3: Cross multiply
    2,883.78x = 3,979.29 × 1,624.74
  4. Step 4: Simplify right side
    2,883.78x = 6,465,311.63
  5. Step 5: Solve for x
    x = 6,465,311.63/2,883.78
  6. Step 6: Final answer
    x = 2,241.96

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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.