Home / 1,890.73-2,611.20-1,684.59

Finding the Fourth Proportional to 1,890.73, 2,611.20 and 1,684.59

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Solution

The fourth proportional to 1,890.73, 2,611.20 and 1,684.59 is: 2,326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.73 : 2,611.20 = 1,684.59 : x
  2. Step 2: Convert to fraction form
    1,890.73/2,611.20 = 1,684.59/x
  3. Step 3: Cross multiply
    1,890.73x = 2,611.20 × 1,684.59
  4. Step 4: Simplify right side
    1,890.73x = 4,398,788.35
  5. Step 5: Solve for x
    x = 4,398,788.35/1,890.73
  6. Step 6: Final answer
    x = 2,326.50

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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.