Home / 1,779.80-2,456.04-1,190.24

Finding the Fourth Proportional to 1,779.80, 2,456.04 and 1,190.24

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Solution

The fourth proportional to 1,779.80, 2,456.04 and 1,190.24 is: 1,642.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.80 : 2,456.04 = 1,190.24 : x
  2. Step 2: Convert to fraction form
    1,779.80/2,456.04 = 1,190.24/x
  3. Step 3: Cross multiply
    1,779.80x = 2,456.04 × 1,190.24
  4. Step 4: Simplify right side
    1,779.80x = 2,923,277.05
  5. Step 5: Solve for x
    x = 2,923,277.05/1,779.80
  6. Step 6: Final answer
    x = 1,642.48

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1.5x scale

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.