Home / 1,948.83-2,690.82-1,203.09

Finding the Fourth Proportional to 1,948.83, 2,690.82 and 1,203.09

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Solution

The fourth proportional to 1,948.83, 2,690.82 and 1,203.09 is: 1,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.83 : 2,690.82 = 1,203.09 : x
  2. Step 2: Convert to fraction form
    1,948.83/2,690.82 = 1,203.09/x
  3. Step 3: Cross multiply
    1,948.83x = 2,690.82 × 1,203.09
  4. Step 4: Simplify right side
    1,948.83x = 3,237,298.63
  5. Step 5: Solve for x
    x = 3,237,298.63/1,948.83
  6. Step 6: Final answer
    x = 1,661.15

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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.