Home / 2,742.42-3,784.41-1,563.45

Finding the Fourth Proportional to 2,742.42, 3,784.41 and 1,563.45

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Solution

The fourth proportional to 2,742.42, 3,784.41 and 1,563.45 is: 2,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.42 : 3,784.41 = 1,563.45 : x
  2. Step 2: Convert to fraction form
    2,742.42/3,784.41 = 1,563.45/x
  3. Step 3: Cross multiply
    2,742.42x = 3,784.41 × 1,563.45
  4. Step 4: Simplify right side
    2,742.42x = 5,916,735.81
  5. Step 5: Solve for x
    x = 5,916,735.81/2,742.42
  6. Step 6: Final answer
    x = 2,157.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.