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Finding the Fourth Proportional to 1,902.47, 2,853.70 and 1,069.59

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Solution

The fourth proportional to 1,902.47, 2,853.70 and 1,069.59 is: 1,604.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.47 : 2,853.70 = 1,069.59 : x
  2. Step 2: Convert to fraction form
    1,902.47/2,853.70 = 1,069.59/x
  3. Step 3: Cross multiply
    1,902.47x = 2,853.70 × 1,069.59
  4. Step 4: Simplify right side
    1,902.47x = 3,052,274.71
  5. Step 5: Solve for x
    x = 3,052,274.71/1,902.47
  6. Step 6: Final answer
    x = 1,604.38

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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.