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Finding the Fourth Proportional to 1,614.03, 2,227.55 and 905.99

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Solution

The fourth proportional to 1,614.03, 2,227.55 and 905.99 is: 1,250.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.03 : 2,227.55 = 905.99 : x
  2. Step 2: Convert to fraction form
    1,614.03/2,227.55 = 905.99/x
  3. Step 3: Cross multiply
    1,614.03x = 2,227.55 × 905.99
  4. Step 4: Simplify right side
    1,614.03x = 2,018,122.36
  5. Step 5: Solve for x
    x = 2,018,122.36/1,614.03
  6. Step 6: Final answer
    x = 1,250.36

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1.5x scale

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.