Home / 2,742.34-3,784.44-1,563.40

Finding the Fourth Proportional to 2,742.34, 3,784.44 and 1,563.40

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Solution

The fourth proportional to 2,742.34, 3,784.44 and 1,563.40 is: 2,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.34 : 3,784.44 = 1,563.40 : x
  2. Step 2: Convert to fraction form
    2,742.34/3,784.44 = 1,563.40/x
  3. Step 3: Cross multiply
    2,742.34x = 3,784.44 × 1,563.40
  4. Step 4: Simplify right side
    2,742.34x = 5,916,593.50
  5. Step 5: Solve for x
    x = 5,916,593.50/2,742.34
  6. Step 6: Final answer
    x = 2,157.50

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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.