Home / 1,903.99-2,628.30-1,379.92

Finding the Fourth Proportional to 1,903.99, 2,628.30 and 1,379.92

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Solution

The fourth proportional to 1,903.99, 2,628.30 and 1,379.92 is: 1,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.99 : 2,628.30 = 1,379.92 : x
  2. Step 2: Convert to fraction form
    1,903.99/2,628.30 = 1,379.92/x
  3. Step 3: Cross multiply
    1,903.99x = 2,628.30 × 1,379.92
  4. Step 4: Simplify right side
    1,903.99x = 3,626,843.74
  5. Step 5: Solve for x
    x = 3,626,843.74/1,903.99
  6. Step 6: Final answer
    x = 1,904.86

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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.