Home / 2,742.52-3,784.68-1,563.56

Finding the Fourth Proportional to 2,742.52, 3,784.68 and 1,563.56

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Solution

The fourth proportional to 2,742.52, 3,784.68 and 1,563.56 is: 2,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.52 : 3,784.68 = 1,563.56 : x
  2. Step 2: Convert to fraction form
    2,742.52/3,784.68 = 1,563.56/x
  3. Step 3: Cross multiply
    2,742.52x = 3,784.68 × 1,563.56
  4. Step 4: Simplify right side
    2,742.52x = 5,917,574.26
  5. Step 5: Solve for x
    x = 5,917,574.26/2,742.52
  6. Step 6: Final answer
    x = 2,157.71

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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.