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Finding the Fourth Proportional to 2,790.63, 3,851.07 and 1,548.63

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Solution

The fourth proportional to 2,790.63, 3,851.07 and 1,548.63 is: 2,137.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.63 : 3,851.07 = 1,548.63 : x
  2. Step 2: Convert to fraction form
    2,790.63/3,851.07 = 1,548.63/x
  3. Step 3: Cross multiply
    2,790.63x = 3,851.07 × 1,548.63
  4. Step 4: Simplify right side
    2,790.63x = 5,963,882.53
  5. Step 5: Solve for x
    x = 5,963,882.53/2,790.63
  6. Step 6: Final answer
    x = 2,137.11

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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.