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Finding the Fourth Proportional to 1,264.95, 1,897.56 and 1,104.57

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Solution

The fourth proportional to 1,264.95, 1,897.56 and 1,104.57 is: 1,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.95 : 1,897.56 = 1,104.57 : x
  2. Step 2: Convert to fraction form
    1,264.95/1,897.56 = 1,104.57/x
  3. Step 3: Cross multiply
    1,264.95x = 1,897.56 × 1,104.57
  4. Step 4: Simplify right side
    1,264.95x = 2,095,987.85
  5. Step 5: Solve for x
    x = 2,095,987.85/1,264.95
  6. Step 6: Final answer
    x = 1,656.97

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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.