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Finding the Fourth Proportional to 607.37, 837.54 and 397.71

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Solution

The fourth proportional to 607.37, 837.54 and 397.71 is: 548.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.37 : 837.54 = 397.71 : x
  2. Step 2: Convert to fraction form
    607.37/837.54 = 397.71/x
  3. Step 3: Cross multiply
    607.37x = 837.54 × 397.71
  4. Step 4: Simplify right side
    607.37x = 333,098.03
  5. Step 5: Solve for x
    x = 333,098.03/607.37
  6. Step 6: Final answer
    x = 548.43

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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.