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Finding the Fourth Proportional to 2,293.10, 3,440.55 and 906.20

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Solution

The fourth proportional to 2,293.10, 3,440.55 and 906.20 is: 1,359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,293.10 : 3,440.55 = 906.20 : x
  2. Step 2: Convert to fraction form
    2,293.10/3,440.55 = 906.20/x
  3. Step 3: Cross multiply
    2,293.10x = 3,440.55 × 906.20
  4. Step 4: Simplify right side
    2,293.10x = 3,117,826.41
  5. Step 5: Solve for x
    x = 3,117,826.41/2,293.10
  6. Step 6: Final answer
    x = 1,359.66

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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.