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Finding the Fourth Proportional to 3,533.66, 4,876.86 and 1,961.85

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Solution

The fourth proportional to 3,533.66, 4,876.86 and 1,961.85 is: 2,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,533.66 : 4,876.86 = 1,961.85 : x
  2. Step 2: Convert to fraction form
    3,533.66/4,876.86 = 1,961.85/x
  3. Step 3: Cross multiply
    3,533.66x = 4,876.86 × 1,961.85
  4. Step 4: Simplify right side
    3,533.66x = 9,567,657.98
  5. Step 5: Solve for x
    x = 9,567,657.98/3,533.66
  6. Step 6: Final answer
    x = 2,707.58

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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.