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Finding the Fourth Proportional to 2,879.84, 3,969.93 and 2,037.93

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Solution

The fourth proportional to 2,879.84, 3,969.93 and 2,037.93 is: 2,809.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.84 : 3,969.93 = 2,037.93 : x
  2. Step 2: Convert to fraction form
    2,879.84/3,969.93 = 2,037.93/x
  3. Step 3: Cross multiply
    2,879.84x = 3,969.93 × 2,037.93
  4. Step 4: Simplify right side
    2,879.84x = 8,090,439.44
  5. Step 5: Solve for x
    x = 8,090,439.44/2,879.84
  6. Step 6: Final answer
    x = 2,809.34

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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.