Home / 5,028.60-6,939.51-2,790.63

Finding the Fourth Proportional to 5,028.60, 6,939.51 and 2,790.63

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Solution

The fourth proportional to 5,028.60, 6,939.51 and 2,790.63 is: 3,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.60 : 6,939.51 = 2,790.63 : x
  2. Step 2: Convert to fraction form
    5,028.60/6,939.51 = 2,790.63/x
  3. Step 3: Cross multiply
    5,028.60x = 6,939.51 × 2,790.63
  4. Step 4: Simplify right side
    5,028.60x = 19,365,604.79
  5. Step 5: Solve for x
    x = 19,365,604.79/5,028.60
  6. Step 6: Final answer
    x = 3,851.09

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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.