Home / 1,946.58-2,918.30-1,328.73

Finding the Fourth Proportional to 1,946.58, 2,918.30 and 1,328.73

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Solution

The fourth proportional to 1,946.58, 2,918.30 and 1,328.73 is: 1,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.58 : 2,918.30 = 1,328.73 : x
  2. Step 2: Convert to fraction form
    1,946.58/2,918.30 = 1,328.73/x
  3. Step 3: Cross multiply
    1,946.58x = 2,918.30 × 1,328.73
  4. Step 4: Simplify right side
    1,946.58x = 3,877,626.12
  5. Step 5: Solve for x
    x = 3,877,626.12/1,946.58
  6. Step 6: Final answer
    x = 1,992.02

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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.