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Finding the Fourth Proportional to 517.14, 713.74 and 377.72

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Solution

The fourth proportional to 517.14, 713.74 and 377.72 is: 521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.14 : 713.74 = 377.72 : x
  2. Step 2: Convert to fraction form
    517.14/713.74 = 377.72/x
  3. Step 3: Cross multiply
    517.14x = 713.74 × 377.72
  4. Step 4: Simplify right side
    517.14x = 269,596.48
  5. Step 5: Solve for x
    x = 269,596.48/517.14
  6. Step 6: Final answer
    x = 521.32

Related Problems

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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.