Home / 2,742.29-3,784.36-1,563.36

Finding the Fourth Proportional to 2,742.29, 3,784.36 and 1,563.36

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Solution

The fourth proportional to 2,742.29, 3,784.36 and 1,563.36 is: 2,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.29 : 3,784.36 = 1,563.36 : x
  2. Step 2: Convert to fraction form
    2,742.29/3,784.36 = 1,563.36/x
  3. Step 3: Cross multiply
    2,742.29x = 3,784.36 × 1,563.36
  4. Step 4: Simplify right side
    2,742.29x = 5,916,336.18
  5. Step 5: Solve for x
    x = 5,916,336.18/2,742.29
  6. Step 6: Final answer
    x = 2,157.44

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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.