Home / 2,768.64-4,150.80-2,655.06

Finding the Fourth Proportional to 2,768.64, 4,150.80 and 2,655.06

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Solution

The fourth proportional to 2,768.64, 4,150.80 and 2,655.06 is: 3,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.64 : 4,150.80 = 2,655.06 : x
  2. Step 2: Convert to fraction form
    2,768.64/4,150.80 = 2,655.06/x
  3. Step 3: Cross multiply
    2,768.64x = 4,150.80 × 2,655.06
  4. Step 4: Simplify right side
    2,768.64x = 11,020,623.05
  5. Step 5: Solve for x
    x = 11,020,623.05/2,768.64
  6. Step 6: Final answer
    x = 3,980.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.