Home / 1,907.19-2,630.97-1,644.75

Finding the Fourth Proportional to 1,907.19, 2,630.97 and 1,644.75

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Solution

The fourth proportional to 1,907.19, 2,630.97 and 1,644.75 is: 2,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.19 : 2,630.97 = 1,644.75 : x
  2. Step 2: Convert to fraction form
    1,907.19/2,630.97 = 1,644.75/x
  3. Step 3: Cross multiply
    1,907.19x = 2,630.97 × 1,644.75
  4. Step 4: Simplify right side
    1,907.19x = 4,327,287.91
  5. Step 5: Solve for x
    x = 4,327,287.91/1,907.19
  6. Step 6: Final answer
    x = 2,268.93

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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.