Home / 1,779.68-2,455.07-1,190.99

Finding the Fourth Proportional to 1,779.68, 2,455.07 and 1,190.99

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Solution

The fourth proportional to 1,779.68, 2,455.07 and 1,190.99 is: 1,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.68 : 2,455.07 = 1,190.99 : x
  2. Step 2: Convert to fraction form
    1,779.68/2,455.07 = 1,190.99/x
  3. Step 3: Cross multiply
    1,779.68x = 2,455.07 × 1,190.99
  4. Step 4: Simplify right side
    1,779.68x = 2,923,945.59
  5. Step 5: Solve for x
    x = 2,923,945.59/1,779.68
  6. Step 6: Final answer
    x = 1,642.97

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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.