Home / 1,601.87-2,210.76-939.28

Finding the Fourth Proportional to 1,601.87, 2,210.76 and 939.28

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Solution

The fourth proportional to 1,601.87, 2,210.76 and 939.28 is: 1,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.87 : 2,210.76 = 939.28 : x
  2. Step 2: Convert to fraction form
    1,601.87/2,210.76 = 939.28/x
  3. Step 3: Cross multiply
    1,601.87x = 2,210.76 × 939.28
  4. Step 4: Simplify right side
    1,601.87x = 2,076,517.96
  5. Step 5: Solve for x
    x = 2,076,517.96/1,601.87
  6. Step 6: Final answer
    x = 1,296.31

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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.