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Finding the Fourth Proportional to 926.96, 1,279.44 and 573.19

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Solution

The fourth proportional to 926.96, 1,279.44 and 573.19 is: 791.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.96 : 1,279.44 = 573.19 : x
  2. Step 2: Convert to fraction form
    926.96/1,279.44 = 573.19/x
  3. Step 3: Cross multiply
    926.96x = 1,279.44 × 573.19
  4. Step 4: Simplify right side
    926.96x = 733,359.02
  5. Step 5: Solve for x
    x = 733,359.02/926.96
  6. Step 6: Final answer
    x = 791.15

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Half scale
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Double scale
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Similar ratio
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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.