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Finding the Fourth Proportional to 1,093.50, 1,510.26 and 743.58

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Solution

The fourth proportional to 1,093.50, 1,510.26 and 743.58 is: 1,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.50 : 1,510.26 = 743.58 : x
  2. Step 2: Convert to fraction form
    1,093.50/1,510.26 = 743.58/x
  3. Step 3: Cross multiply
    1,093.50x = 1,510.26 × 743.58
  4. Step 4: Simplify right side
    1,093.50x = 1,122,999.13
  5. Step 5: Solve for x
    x = 1,122,999.13/1,093.50
  6. Step 6: Final answer
    x = 1,026.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.