Home / 2,177.65-3,003.63-1,431.37

Finding the Fourth Proportional to 2,177.65, 3,003.63 and 1,431.37

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Solution

The fourth proportional to 2,177.65, 3,003.63 and 1,431.37 is: 1,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.65 : 3,003.63 = 1,431.37 : x
  2. Step 2: Convert to fraction form
    2,177.65/3,003.63 = 1,431.37/x
  3. Step 3: Cross multiply
    2,177.65x = 3,003.63 × 1,431.37
  4. Step 4: Simplify right side
    2,177.65x = 4,299,290.85
  5. Step 5: Solve for x
    x = 4,299,290.85/2,177.65
  6. Step 6: Final answer
    x = 1,974.28

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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.