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Finding the Fourth Proportional to 1,901.78, 2,853.23 and 603.22

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Solution

The fourth proportional to 1,901.78, 2,853.23 and 603.22 is: 905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.78 : 2,853.23 = 603.22 : x
  2. Step 2: Convert to fraction form
    1,901.78/2,853.23 = 603.22/x
  3. Step 3: Cross multiply
    1,901.78x = 2,853.23 × 603.22
  4. Step 4: Simplify right side
    1,901.78x = 1,721,125.40
  5. Step 5: Solve for x
    x = 1,721,125.40/1,901.78
  6. Step 6: Final answer
    x = 905.01

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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.