Home / 2,242.30-3,094.64-1,247.90

Finding the Fourth Proportional to 2,242.30, 3,094.64 and 1,247.90

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Solution

The fourth proportional to 2,242.30, 3,094.64 and 1,247.90 is: 1,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,242.30 : 3,094.64 = 1,247.90 : x
  2. Step 2: Convert to fraction form
    2,242.30/3,094.64 = 1,247.90/x
  3. Step 3: Cross multiply
    2,242.30x = 3,094.64 × 1,247.90
  4. Step 4: Simplify right side
    2,242.30x = 3,861,801.26
  5. Step 5: Solve for x
    x = 3,861,801.26/2,242.30
  6. Step 6: Final answer
    x = 1,722.25

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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.