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Finding the Fourth Proportional to 671.77, 927.08 and 377.04

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Solution

The fourth proportional to 671.77, 927.08 and 377.04 is: 520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.77 : 927.08 = 377.04 : x
  2. Step 2: Convert to fraction form
    671.77/927.08 = 377.04/x
  3. Step 3: Cross multiply
    671.77x = 927.08 × 377.04
  4. Step 4: Simplify right side
    671.77x = 349,546.24
  5. Step 5: Solve for x
    x = 349,546.24/671.77
  6. Step 6: Final answer
    x = 520.34

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Half scale
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Double scale
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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.