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Finding the Fourth Proportional to 3,505.63, 4,838.11 and 2,619.90

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Solution

The fourth proportional to 3,505.63, 4,838.11 and 2,619.90 is: 3,615.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.63 : 4,838.11 = 2,619.90 : x
  2. Step 2: Convert to fraction form
    3,505.63/4,838.11 = 2,619.90/x
  3. Step 3: Cross multiply
    3,505.63x = 4,838.11 × 2,619.90
  4. Step 4: Simplify right side
    3,505.63x = 12,675,364.39
  5. Step 5: Solve for x
    x = 12,675,364.39/3,505.63
  6. Step 6: Final answer
    x = 3,615.72

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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.