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Finding the Fourth Proportional to 3,651.78, 5,038.08 and 2,079.03

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Solution

The fourth proportional to 3,651.78, 5,038.08 and 2,079.03 is: 2,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.78 : 5,038.08 = 2,079.03 : x
  2. Step 2: Convert to fraction form
    3,651.78/5,038.08 = 2,079.03/x
  3. Step 3: Cross multiply
    3,651.78x = 5,038.08 × 2,079.03
  4. Step 4: Simplify right side
    3,651.78x = 10,474,342.25
  5. Step 5: Solve for x
    x = 10,474,342.25/3,651.78
  6. Step 6: Final answer
    x = 2,868.28

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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.