Home / 1,893.38-2,611.19-1,230.47

Finding the Fourth Proportional to 1,893.38, 2,611.19 and 1,230.47

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Solution

The fourth proportional to 1,893.38, 2,611.19 and 1,230.47 is: 1,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.38 : 2,611.19 = 1,230.47 : x
  2. Step 2: Convert to fraction form
    1,893.38/2,611.19 = 1,230.47/x
  3. Step 3: Cross multiply
    1,893.38x = 2,611.19 × 1,230.47
  4. Step 4: Simplify right side
    1,893.38x = 3,212,980.98
  5. Step 5: Solve for x
    x = 3,212,980.98/1,893.38
  6. Step 6: Final answer
    x = 1,696.95

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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.