Home / 1,939.30-2,907.82-1,708.66

Finding the Fourth Proportional to 1,939.30, 2,907.82 and 1,708.66

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Solution

The fourth proportional to 1,939.30, 2,907.82 and 1,708.66 is: 2,561.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.30 : 2,907.82 = 1,708.66 : x
  2. Step 2: Convert to fraction form
    1,939.30/2,907.82 = 1,708.66/x
  3. Step 3: Cross multiply
    1,939.30x = 2,907.82 × 1,708.66
  4. Step 4: Simplify right side
    1,939.30x = 4,968,475.72
  5. Step 5: Solve for x
    x = 4,968,475.72/1,939.30
  6. Step 6: Final answer
    x = 2,561.99

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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.