Home / 2,742.76-3,784.26-1,563.40

Finding the Fourth Proportional to 2,742.76, 3,784.26 and 1,563.40

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Solution

The fourth proportional to 2,742.76, 3,784.26 and 1,563.40 is: 2,157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.76 : 3,784.26 = 1,563.40 : x
  2. Step 2: Convert to fraction form
    2,742.76/3,784.26 = 1,563.40/x
  3. Step 3: Cross multiply
    2,742.76x = 3,784.26 × 1,563.40
  4. Step 4: Simplify right side
    2,742.76x = 5,916,312.08
  5. Step 5: Solve for x
    x = 5,916,312.08/2,742.76
  6. Step 6: Final answer
    x = 2,157.07

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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.