Home / 3,810.72-5,262.48-2,768.32

Finding the Fourth Proportional to 3,810.72, 5,262.48 and 2,768.32

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Solution

The fourth proportional to 3,810.72, 5,262.48 and 2,768.32 is: 3,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.72 : 5,262.48 = 2,768.32 : x
  2. Step 2: Convert to fraction form
    3,810.72/5,262.48 = 2,768.32/x
  3. Step 3: Cross multiply
    3,810.72x = 5,262.48 × 2,768.32
  4. Step 4: Simplify right side
    3,810.72x = 14,568,228.63
  5. Step 5: Solve for x
    x = 14,568,228.63/3,810.72
  6. Step 6: Final answer
    x = 3,822.96

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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.