Home / 1,950.88-2,690.40-1,687.36

Finding the Fourth Proportional to 1,950.88, 2,690.40 and 1,687.36

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Solution

The fourth proportional to 1,950.88, 2,690.40 and 1,687.36 is: 2,326.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.88 : 2,690.40 = 1,687.36 : x
  2. Step 2: Convert to fraction form
    1,950.88/2,690.40 = 1,687.36/x
  3. Step 3: Cross multiply
    1,950.88x = 2,690.40 × 1,687.36
  4. Step 4: Simplify right side
    1,950.88x = 4,539,673.34
  5. Step 5: Solve for x
    x = 4,539,673.34/1,950.88
  6. Step 6: Final answer
    x = 2,326.99

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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.