Home / 1,851.86-2,556.08-1,143.82

Finding the Fourth Proportional to 1,851.86, 2,556.08 and 1,143.82

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Solution

The fourth proportional to 1,851.86, 2,556.08 and 1,143.82 is: 1,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.86 : 2,556.08 = 1,143.82 : x
  2. Step 2: Convert to fraction form
    1,851.86/2,556.08 = 1,143.82/x
  3. Step 3: Cross multiply
    1,851.86x = 2,556.08 × 1,143.82
  4. Step 4: Simplify right side
    1,851.86x = 2,923,697.19
  5. Step 5: Solve for x
    x = 2,923,697.19/1,851.86
  6. Step 6: Final answer
    x = 1,578.79

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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.