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Finding the Fourth Proportional to 1,862.35, 2,795.34 and 889.12

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Solution

The fourth proportional to 1,862.35, 2,795.34 and 889.12 is: 1,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.35 : 2,795.34 = 889.12 : x
  2. Step 2: Convert to fraction form
    1,862.35/2,795.34 = 889.12/x
  3. Step 3: Cross multiply
    1,862.35x = 2,795.34 × 889.12
  4. Step 4: Simplify right side
    1,862.35x = 2,485,392.70
  5. Step 5: Solve for x
    x = 2,485,392.70/1,862.35
  6. Step 6: Final answer
    x = 1,334.55

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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.