Home / 1,857.88-2,786.64-559.36

Finding the Fourth Proportional to 1,857.88, 2,786.64 and 559.36

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Solution

The fourth proportional to 1,857.88, 2,786.64 and 559.36 is: 838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.88 : 2,786.64 = 559.36 : x
  2. Step 2: Convert to fraction form
    1,857.88/2,786.64 = 559.36/x
  3. Step 3: Cross multiply
    1,857.88x = 2,786.64 × 559.36
  4. Step 4: Simplify right side
    1,857.88x = 1,558,734.95
  5. Step 5: Solve for x
    x = 1,558,734.95/1,857.88
  6. Step 6: Final answer
    x = 838.99

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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.