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Finding the Fourth Proportional to 3,142.97, 4,336.97 and 1,817.10

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Solution

The fourth proportional to 3,142.97, 4,336.97 and 1,817.10 is: 2,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.97 : 4,336.97 = 1,817.10 : x
  2. Step 2: Convert to fraction form
    3,142.97/4,336.97 = 1,817.10/x
  3. Step 3: Cross multiply
    3,142.97x = 4,336.97 × 1,817.10
  4. Step 4: Simplify right side
    3,142.97x = 7,880,708.19
  5. Step 5: Solve for x
    x = 7,880,708.19/3,142.97
  6. Step 6: Final answer
    x = 2,507.41

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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.