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Finding the Fourth Proportional to 2,906.49, 4,359.08 and 826.45

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Solution

The fourth proportional to 2,906.49, 4,359.08 and 826.45 is: 1,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.49 : 4,359.08 = 826.45 : x
  2. Step 2: Convert to fraction form
    2,906.49/4,359.08 = 826.45/x
  3. Step 3: Cross multiply
    2,906.49x = 4,359.08 × 826.45
  4. Step 4: Simplify right side
    2,906.49x = 3,602,535.74
  5. Step 5: Solve for x
    x = 3,602,535.74/2,906.49
  6. Step 6: Final answer
    x = 1,239.48

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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.