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Finding the Fourth Proportional to 3,333.26, 4,600.78 and 1,917.10

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Solution

The fourth proportional to 3,333.26, 4,600.78 and 1,917.10 is: 2,646.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.26 : 4,600.78 = 1,917.10 : x
  2. Step 2: Convert to fraction form
    3,333.26/4,600.78 = 1,917.10/x
  3. Step 3: Cross multiply
    3,333.26x = 4,600.78 × 1,917.10
  4. Step 4: Simplify right side
    3,333.26x = 8,820,132.33
  5. Step 5: Solve for x
    x = 8,820,132.33/3,333.26
  6. Step 6: Final answer
    x = 2,646.10

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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.