Home / 2,846.37-3,929.80-2,181.97

Finding the Fourth Proportional to 2,846.37, 3,929.80 and 2,181.97

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Solution

The fourth proportional to 2,846.37, 3,929.80 and 2,181.97 is: 3,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.37 : 3,929.80 = 2,181.97 : x
  2. Step 2: Convert to fraction form
    2,846.37/3,929.80 = 2,181.97/x
  3. Step 3: Cross multiply
    2,846.37x = 3,929.80 × 2,181.97
  4. Step 4: Simplify right side
    2,846.37x = 8,574,686.06
  5. Step 5: Solve for x
    x = 8,574,686.06/2,846.37
  6. Step 6: Final answer
    x = 3,012.50

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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.