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Finding the Fourth Proportional to 2,846.79, 3,928.46 and 1,651.79

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Solution

The fourth proportional to 2,846.79, 3,928.46 and 1,651.79 is: 2,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.79 : 3,928.46 = 1,651.79 : x
  2. Step 2: Convert to fraction form
    2,846.79/3,928.46 = 1,651.79/x
  3. Step 3: Cross multiply
    2,846.79x = 3,928.46 × 1,651.79
  4. Step 4: Simplify right side
    2,846.79x = 6,488,992.51
  5. Step 5: Solve for x
    x = 6,488,992.51/2,846.79
  6. Step 6: Final answer
    x = 2,279.41

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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.