Home / 2,742.21-3,784.28-1,563.35

Finding the Fourth Proportional to 2,742.21, 3,784.28 and 1,563.35

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Solution

The fourth proportional to 2,742.21, 3,784.28 and 1,563.35 is: 2,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.21 : 3,784.28 = 1,563.35 : x
  2. Step 2: Convert to fraction form
    2,742.21/3,784.28 = 1,563.35/x
  3. Step 3: Cross multiply
    2,742.21x = 3,784.28 × 1,563.35
  4. Step 4: Simplify right side
    2,742.21x = 5,916,127.40
  5. Step 5: Solve for x
    x = 5,916,127.40/2,742.21
  6. Step 6: Final answer
    x = 2,157.43

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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.