Home / 2,846.63-3,928.44-1,667.78

Finding the Fourth Proportional to 2,846.63, 3,928.44 and 1,667.78

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Solution

The fourth proportional to 2,846.63, 3,928.44 and 1,667.78 is: 2,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.63 : 3,928.44 = 1,667.78 : x
  2. Step 2: Convert to fraction form
    2,846.63/3,928.44 = 1,667.78/x
  3. Step 3: Cross multiply
    2,846.63x = 3,928.44 × 1,667.78
  4. Step 4: Simplify right side
    2,846.63x = 6,551,754.02
  5. Step 5: Solve for x
    x = 6,551,754.02/2,846.63
  6. Step 6: Final answer
    x = 2,301.59

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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.