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Finding the Fourth Proportional to 537.38, 741.25 and 397.45

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Solution

The fourth proportional to 537.38, 741.25 and 397.45 is: 548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.38 : 741.25 = 397.45 : x
  2. Step 2: Convert to fraction form
    537.38/741.25 = 397.45/x
  3. Step 3: Cross multiply
    537.38x = 741.25 × 397.45
  4. Step 4: Simplify right side
    537.38x = 294,609.81
  5. Step 5: Solve for x
    x = 294,609.81/537.38
  6. Step 6: Final answer
    x = 548.23

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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.