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Finding the Fourth Proportional to 1,093.20, 1,506.66 and 937.68

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Solution

The fourth proportional to 1,093.20, 1,506.66 and 937.68 is: 1,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.20 : 1,506.66 = 937.68 : x
  2. Step 2: Convert to fraction form
    1,093.20/1,506.66 = 937.68/x
  3. Step 3: Cross multiply
    1,093.20x = 1,506.66 × 937.68
  4. Step 4: Simplify right side
    1,093.20x = 1,412,764.95
  5. Step 5: Solve for x
    x = 1,412,764.95/1,093.20
  6. Step 6: Final answer
    x = 1,292.32

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1.5x scale

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.