Home / 5,028.77-6,939.57-2,790.64

Finding the Fourth Proportional to 5,028.77, 6,939.57 and 2,790.64

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Solution

The fourth proportional to 5,028.77, 6,939.57 and 2,790.64 is: 3,851.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.77 : 6,939.57 = 2,790.64 : x
  2. Step 2: Convert to fraction form
    5,028.77/6,939.57 = 2,790.64/x
  3. Step 3: Cross multiply
    5,028.77x = 6,939.57 × 2,790.64
  4. Step 4: Simplify right side
    5,028.77x = 19,365,841.62
  5. Step 5: Solve for x
    x = 19,365,841.62/5,028.77
  6. Step 6: Final answer
    x = 3,851.01

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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.