Home / 1,898.73-2,618.75-1,686.26

Finding the Fourth Proportional to 1,898.73, 2,618.75 and 1,686.26

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Solution

The fourth proportional to 1,898.73, 2,618.75 and 1,686.26 is: 2,325.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.73 : 2,618.75 = 1,686.26 : x
  2. Step 2: Convert to fraction form
    1,898.73/2,618.75 = 1,686.26/x
  3. Step 3: Cross multiply
    1,898.73x = 2,618.75 × 1,686.26
  4. Step 4: Simplify right side
    1,898.73x = 4,415,904.14
  5. Step 5: Solve for x
    x = 4,415,904.14/1,898.73
  6. Step 6: Final answer
    x = 2,325.71

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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.