Home / 1,890.23-2,610.51-1,684.09

Finding the Fourth Proportional to 1,890.23, 2,610.51 and 1,684.09

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Solution

The fourth proportional to 1,890.23, 2,610.51 and 1,684.09 is: 2,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.23 : 2,610.51 = 1,684.09 : x
  2. Step 2: Convert to fraction form
    1,890.23/2,610.51 = 1,684.09/x
  3. Step 3: Cross multiply
    1,890.23x = 2,610.51 × 1,684.09
  4. Step 4: Simplify right side
    1,890.23x = 4,396,320.73
  5. Step 5: Solve for x
    x = 4,396,320.73/1,890.23
  6. Step 6: Final answer
    x = 2,325.81

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1.5x scale

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.