Home / 2,770.64-3,822.92-1,667.28

Finding the Fourth Proportional to 2,770.64, 3,822.92 and 1,667.28

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Solution

The fourth proportional to 2,770.64, 3,822.92 and 1,667.28 is: 2,300.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.64 : 3,822.92 = 1,667.28 : x
  2. Step 2: Convert to fraction form
    2,770.64/3,822.92 = 1,667.28/x
  3. Step 3: Cross multiply
    2,770.64x = 3,822.92 × 1,667.28
  4. Step 4: Simplify right side
    2,770.64x = 6,373,878.06
  5. Step 5: Solve for x
    x = 6,373,878.06/2,770.64
  6. Step 6: Final answer
    x = 2,300.51

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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.