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Finding the Fourth Proportional to 1,334.30, 2,001.70 and 603.87

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Solution

The fourth proportional to 1,334.30, 2,001.70 and 603.87 is: 905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.30 : 2,001.70 = 603.87 : x
  2. Step 2: Convert to fraction form
    1,334.30/2,001.70 = 603.87/x
  3. Step 3: Cross multiply
    1,334.30x = 2,001.70 × 603.87
  4. Step 4: Simplify right side
    1,334.30x = 1,208,766.58
  5. Step 5: Solve for x
    x = 1,208,766.58/1,334.30
  6. Step 6: Final answer
    x = 905.92

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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.