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Finding the Fourth Proportional to 3,249.78, 4,483.53 and 1,851.72

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Solution

The fourth proportional to 3,249.78, 4,483.53 and 1,851.72 is: 2,554.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.78 : 4,483.53 = 1,851.72 : x
  2. Step 2: Convert to fraction form
    3,249.78/4,483.53 = 1,851.72/x
  3. Step 3: Cross multiply
    3,249.78x = 4,483.53 × 1,851.72
  4. Step 4: Simplify right side
    3,249.78x = 8,302,242.17
  5. Step 5: Solve for x
    x = 8,302,242.17/3,249.78
  6. Step 6: Final answer
    x = 2,554.71

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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.