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Finding the Fourth Proportional to 1,471.88, 2,207.74 and 606.16

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Solution

The fourth proportional to 1,471.88, 2,207.74 and 606.16 is: 909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.88 : 2,207.74 = 606.16 : x
  2. Step 2: Convert to fraction form
    1,471.88/2,207.74 = 606.16/x
  3. Step 3: Cross multiply
    1,471.88x = 2,207.74 × 606.16
  4. Step 4: Simplify right side
    1,471.88x = 1,338,243.68
  5. Step 5: Solve for x
    x = 1,338,243.68/1,471.88
  6. Step 6: Final answer
    x = 909.21

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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.