Home / 2,742.14-3,784.20-1,563.23

Finding the Fourth Proportional to 2,742.14, 3,784.20 and 1,563.23

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Solution

The fourth proportional to 2,742.14, 3,784.20 and 1,563.23 is: 2,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.14 : 3,784.20 = 1,563.23 : x
  2. Step 2: Convert to fraction form
    2,742.14/3,784.20 = 1,563.23/x
  3. Step 3: Cross multiply
    2,742.14x = 3,784.20 × 1,563.23
  4. Step 4: Simplify right side
    2,742.14x = 5,915,574.97
  5. Step 5: Solve for x
    x = 5,915,574.97/2,742.14
  6. Step 6: Final answer
    x = 2,157.28

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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.