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Finding the Fourth Proportional to 795.77, 1,192.95 and 385.19

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Solution

The fourth proportional to 795.77, 1,192.95 and 385.19 is: 577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.77 : 1,192.95 = 385.19 : x
  2. Step 2: Convert to fraction form
    795.77/1,192.95 = 385.19/x
  3. Step 3: Cross multiply
    795.77x = 1,192.95 × 385.19
  4. Step 4: Simplify right side
    795.77x = 459,506.45
  5. Step 5: Solve for x
    x = 459,506.45/795.77
  6. Step 6: Final answer
    x = 577.44

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.