Home / 3,135.80-4,304.32-2,773.80

Finding the Fourth Proportional to 3,135.80, 4,304.32 and 2,773.80

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Solution

The fourth proportional to 3,135.80, 4,304.32 and 2,773.80 is: 3,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.80 : 4,304.32 = 2,773.80 : x
  2. Step 2: Convert to fraction form
    3,135.80/4,304.32 = 2,773.80/x
  3. Step 3: Cross multiply
    3,135.80x = 4,304.32 × 2,773.80
  4. Step 4: Simplify right side
    3,135.80x = 11,939,322.82
  5. Step 5: Solve for x
    x = 11,939,322.82/3,135.80
  6. Step 6: Final answer
    x = 3,807.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.