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Finding the Fourth Proportional to 901.49, 1,352.93 and 491.09

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Solution

The fourth proportional to 901.49, 1,352.93 and 491.09 is: 737.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.49 : 1,352.93 = 491.09 : x
  2. Step 2: Convert to fraction form
    901.49/1,352.93 = 491.09/x
  3. Step 3: Cross multiply
    901.49x = 1,352.93 × 491.09
  4. Step 4: Simplify right side
    901.49x = 664,401.17
  5. Step 5: Solve for x
    x = 664,401.17/901.49
  6. Step 6: Final answer
    x = 737.01

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.