Home / 2,471.81-3,392.93-2,185.78

Finding the Fourth Proportional to 2,471.81, 3,392.93 and 2,185.78

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Solution

The fourth proportional to 2,471.81, 3,392.93 and 2,185.78 is: 3,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.81 : 3,392.93 = 2,185.78 : x
  2. Step 2: Convert to fraction form
    2,471.81/3,392.93 = 2,185.78/x
  3. Step 3: Cross multiply
    2,471.81x = 3,392.93 × 2,185.78
  4. Step 4: Simplify right side
    2,471.81x = 7,416,198.54
  5. Step 5: Solve for x
    x = 7,416,198.54/2,471.81
  6. Step 6: Final answer
    x = 3,000.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.