Home / 2,371.23-3,556.65-1,139.64

Finding the Fourth Proportional to 2,371.23, 3,556.65 and 1,139.64

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Solution

The fourth proportional to 2,371.23, 3,556.65 and 1,139.64 is: 1,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.23 : 3,556.65 = 1,139.64 : x
  2. Step 2: Convert to fraction form
    2,371.23/3,556.65 = 1,139.64/x
  3. Step 3: Cross multiply
    2,371.23x = 3,556.65 × 1,139.64
  4. Step 4: Simplify right side
    2,371.23x = 4,053,300.61
  5. Step 5: Solve for x
    x = 4,053,300.61/2,371.23
  6. Step 6: Final answer
    x = 1,709.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.