Home / 1,948.37-2,687.73-1,319.12

Finding the Fourth Proportional to 1,948.37, 2,687.73 and 1,319.12

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Solution

The fourth proportional to 1,948.37, 2,687.73 and 1,319.12 is: 1,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.37 : 2,687.73 = 1,319.12 : x
  2. Step 2: Convert to fraction form
    1,948.37/2,687.73 = 1,319.12/x
  3. Step 3: Cross multiply
    1,948.37x = 2,687.73 × 1,319.12
  4. Step 4: Simplify right side
    1,948.37x = 3,545,448.85
  5. Step 5: Solve for x
    x = 3,545,448.85/1,948.37
  6. Step 6: Final answer
    x = 1,819.70

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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.