Home / 3,845.04-5,305.72-2,166.32

Finding the Fourth Proportional to 3,845.04, 5,305.72 and 2,166.32

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Solution

The fourth proportional to 3,845.04, 5,305.72 and 2,166.32 is: 2,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.04 : 5,305.72 = 2,166.32 : x
  2. Step 2: Convert to fraction form
    3,845.04/5,305.72 = 2,166.32/x
  3. Step 3: Cross multiply
    3,845.04x = 5,305.72 × 2,166.32
  4. Step 4: Simplify right side
    3,845.04x = 11,493,887.35
  5. Step 5: Solve for x
    x = 11,493,887.35/3,845.04
  6. Step 6: Final answer
    x = 2,989.28

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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.