Home / 3,790.62-5,218.29-3,126.42

Finding the Fourth Proportional to 3,790.62, 5,218.29 and 3,126.42

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Solution

The fourth proportional to 3,790.62, 5,218.29 and 3,126.42 is: 4,303.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.62 : 5,218.29 = 3,126.42 : x
  2. Step 2: Convert to fraction form
    3,790.62/5,218.29 = 3,126.42/x
  3. Step 3: Cross multiply
    3,790.62x = 5,218.29 × 3,126.42
  4. Step 4: Simplify right side
    3,790.62x = 16,314,566.22
  5. Step 5: Solve for x
    x = 16,314,566.22/3,790.62
  6. Step 6: Final answer
    x = 4,303.93

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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.