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Finding the Fourth Proportional to 2,681.97, 3,701.70 and 1,563.10

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Solution

The fourth proportional to 2,681.97, 3,701.70 and 1,563.10 is: 2,157.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.97 : 3,701.70 = 1,563.10 : x
  2. Step 2: Convert to fraction form
    2,681.97/3,701.70 = 1,563.10/x
  3. Step 3: Cross multiply
    2,681.97x = 3,701.70 × 1,563.10
  4. Step 4: Simplify right side
    2,681.97x = 5,786,127.27
  5. Step 5: Solve for x
    x = 5,786,127.27/2,681.97
  6. Step 6: Final answer
    x = 2,157.42

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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.