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Finding the Fourth Proportional to 3,651.84, 5,039.55 and 2,079.93

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Solution

The fourth proportional to 3,651.84, 5,039.55 and 2,079.93 is: 2,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.84 : 5,039.55 = 2,079.93 : x
  2. Step 2: Convert to fraction form
    3,651.84/5,039.55 = 2,079.93/x
  3. Step 3: Cross multiply
    3,651.84x = 5,039.55 × 2,079.93
  4. Step 4: Simplify right side
    3,651.84x = 10,481,911.23
  5. Step 5: Solve for x
    x = 10,481,911.23/3,651.84
  6. Step 6: Final answer
    x = 2,870.31

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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.