Home / 1,857.14-2,786.17-558.57

Finding the Fourth Proportional to 1,857.14, 2,786.17 and 558.57

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Solution

The fourth proportional to 1,857.14, 2,786.17 and 558.57 is: 838.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.14 : 2,786.17 = 558.57 : x
  2. Step 2: Convert to fraction form
    1,857.14/2,786.17 = 558.57/x
  3. Step 3: Cross multiply
    1,857.14x = 2,786.17 × 558.57
  4. Step 4: Simplify right side
    1,857.14x = 1,556,270.98
  5. Step 5: Solve for x
    x = 1,556,270.98/1,857.14
  6. Step 6: Final answer
    x = 838.00

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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.