Home / 1,858.05-2,786.98-625.47

Finding the Fourth Proportional to 1,858.05, 2,786.98 and 625.47

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Solution

The fourth proportional to 1,858.05, 2,786.98 and 625.47 is: 938.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.05 : 2,786.98 = 625.47 : x
  2. Step 2: Convert to fraction form
    1,858.05/2,786.98 = 625.47/x
  3. Step 3: Cross multiply
    1,858.05x = 2,786.98 × 625.47
  4. Step 4: Simplify right side
    1,858.05x = 1,743,172.38
  5. Step 5: Solve for x
    x = 1,743,172.38/1,858.05
  6. Step 6: Final answer
    x = 938.17

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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.