Home / 1,868.91-2,798.29-1,319.73

Finding the Fourth Proportional to 1,868.91, 2,798.29 and 1,319.73

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Solution

The fourth proportional to 1,868.91, 2,798.29 and 1,319.73 is: 1,976.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.91 : 2,798.29 = 1,319.73 : x
  2. Step 2: Convert to fraction form
    1,868.91/2,798.29 = 1,319.73/x
  3. Step 3: Cross multiply
    1,868.91x = 2,798.29 × 1,319.73
  4. Step 4: Simplify right side
    1,868.91x = 3,692,987.26
  5. Step 5: Solve for x
    x = 3,692,987.26/1,868.91
  6. Step 6: Final answer
    x = 1,976.01

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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.