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Finding the Fourth Proportional to 901.05, 1,351.57 and 490.07

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Solution

The fourth proportional to 901.05, 1,351.57 and 490.07 is: 735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.05 : 1,351.57 = 490.07 : x
  2. Step 2: Convert to fraction form
    901.05/1,351.57 = 490.07/x
  3. Step 3: Cross multiply
    901.05x = 1,351.57 × 490.07
  4. Step 4: Simplify right side
    901.05x = 662,369.59
  5. Step 5: Solve for x
    x = 662,369.59/901.05
  6. Step 6: Final answer
    x = 735.11

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