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Finding the Fourth Proportional to 941.84, 1,299.70 and 548.79

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Solution

The fourth proportional to 941.84, 1,299.70 and 548.79 is: 757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.84 : 1,299.70 = 548.79 : x
  2. Step 2: Convert to fraction form
    941.84/1,299.70 = 548.79/x
  3. Step 3: Cross multiply
    941.84x = 1,299.70 × 548.79
  4. Step 4: Simplify right side
    941.84x = 713,258.18
  5. Step 5: Solve for x
    x = 713,258.18/941.84
  6. Step 6: Final answer
    x = 757.30

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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.