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Finding the Fourth Proportional to 3,902.99, 5,853.61 and 1,129.04

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Solution

The fourth proportional to 3,902.99, 5,853.61 and 1,129.04 is: 1,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.99 : 5,853.61 = 1,129.04 : x
  2. Step 2: Convert to fraction form
    3,902.99/5,853.61 = 1,129.04/x
  3. Step 3: Cross multiply
    3,902.99x = 5,853.61 × 1,129.04
  4. Step 4: Simplify right side
    3,902.99x = 6,608,954.19
  5. Step 5: Solve for x
    x = 6,608,954.19/3,902.99
  6. Step 6: Final answer
    x = 1,693.31

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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.