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Finding the Fourth Proportional to 911.37, 1,363.71 and 632.35

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Solution

The fourth proportional to 911.37, 1,363.71 and 632.35 is: 946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    911.37 : 1,363.71 = 632.35 : x
  2. Step 2: Convert to fraction form
    911.37/1,363.71 = 632.35/x
  3. Step 3: Cross multiply
    911.37x = 1,363.71 × 632.35
  4. Step 4: Simplify right side
    911.37x = 862,342.02
  5. Step 5: Solve for x
    x = 862,342.02/911.37
  6. Step 6: Final answer
    x = 946.20

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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.