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Finding the Fourth Proportional to 2,294.40, 3,440.22 and 906.12

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Solution

The fourth proportional to 2,294.40, 3,440.22 and 906.12 is: 1,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,294.40 : 3,440.22 = 906.12 : x
  2. Step 2: Convert to fraction form
    2,294.40/3,440.22 = 906.12/x
  3. Step 3: Cross multiply
    2,294.40x = 3,440.22 × 906.12
  4. Step 4: Simplify right side
    2,294.40x = 3,117,252.15
  5. Step 5: Solve for x
    x = 3,117,252.15/2,294.40
  6. Step 6: Final answer
    x = 1,358.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.