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Finding the Fourth Proportional to 890.67, 1,335.96 and 377.67

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Solution

The fourth proportional to 890.67, 1,335.96 and 377.67 is: 566.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    890.67 : 1,335.96 = 377.67 : x
  2. Step 2: Convert to fraction form
    890.67/1,335.96 = 377.67/x
  3. Step 3: Cross multiply
    890.67x = 1,335.96 × 377.67
  4. Step 4: Simplify right side
    890.67x = 504,552.01
  5. Step 5: Solve for x
    x = 504,552.01/890.67
  6. Step 6: Final answer
    x = 566.49

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Half scale
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Double scale
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Similar ratio
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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.