Home / 2,742.89-3,784.26-1,563.12

Finding the Fourth Proportional to 2,742.89, 3,784.26 and 1,563.12

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Solution

The fourth proportional to 2,742.89, 3,784.26 and 1,563.12 is: 2,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.89 : 3,784.26 = 1,563.12 : x
  2. Step 2: Convert to fraction form
    2,742.89/3,784.26 = 1,563.12/x
  3. Step 3: Cross multiply
    2,742.89x = 3,784.26 × 1,563.12
  4. Step 4: Simplify right side
    2,742.89x = 5,915,252.49
  5. Step 5: Solve for x
    x = 5,915,252.49/2,742.89
  6. Step 6: Final answer
    x = 2,156.58

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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.