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Finding the Fourth Proportional to 3,364.85, 4,644.74 and 2,890.85

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Solution

The fourth proportional to 3,364.85, 4,644.74 and 2,890.85 is: 3,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.85 : 4,644.74 = 2,890.85 : x
  2. Step 2: Convert to fraction form
    3,364.85/4,644.74 = 2,890.85/x
  3. Step 3: Cross multiply
    3,364.85x = 4,644.74 × 2,890.85
  4. Step 4: Simplify right side
    3,364.85x = 13,427,246.63
  5. Step 5: Solve for x
    x = 13,427,246.63/3,364.85
  6. Step 6: Final answer
    x = 3,990.44

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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.