Home / 1,601.37-2,208.87-938.18

Finding the Fourth Proportional to 1,601.37, 2,208.87 and 938.18

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Solution

The fourth proportional to 1,601.37, 2,208.87 and 938.18 is: 1,294.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.37 : 2,208.87 = 938.18 : x
  2. Step 2: Convert to fraction form
    1,601.37/2,208.87 = 938.18/x
  3. Step 3: Cross multiply
    1,601.37x = 2,208.87 × 938.18
  4. Step 4: Simplify right side
    1,601.37x = 2,072,323.18
  5. Step 5: Solve for x
    x = 2,072,323.18/1,601.37
  6. Step 6: Final answer
    x = 1,294.09

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