Home / 2,122.03-2,928.26-1,177.81

Finding the Fourth Proportional to 2,122.03, 2,928.26 and 1,177.81

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Solution

The fourth proportional to 2,122.03, 2,928.26 and 1,177.81 is: 1,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.03 : 2,928.26 = 1,177.81 : x
  2. Step 2: Convert to fraction form
    2,122.03/2,928.26 = 1,177.81/x
  3. Step 3: Cross multiply
    2,122.03x = 2,928.26 × 1,177.81
  4. Step 4: Simplify right side
    2,122.03x = 3,448,933.91
  5. Step 5: Solve for x
    x = 3,448,933.91/2,122.03
  6. Step 6: Final answer
    x = 1,625.30

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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.