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Finding the Fourth Proportional to 4,305.90, 5,941.36 and 2,891.64

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Solution

The fourth proportional to 4,305.90, 5,941.36 and 2,891.64 is: 3,989.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.90 : 5,941.36 = 2,891.64 : x
  2. Step 2: Convert to fraction form
    4,305.90/5,941.36 = 2,891.64/x
  3. Step 3: Cross multiply
    4,305.90x = 5,941.36 × 2,891.64
  4. Step 4: Simplify right side
    4,305.90x = 17,180,274.23
  5. Step 5: Solve for x
    x = 17,180,274.23/4,305.90
  6. Step 6: Final answer
    x = 3,989.94

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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.