Home / 4,021.95-5,539.91-2,840.97

Finding the Fourth Proportional to 4,021.95, 5,539.91 and 2,840.97

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Solution

The fourth proportional to 4,021.95, 5,539.91 and 2,840.97 is: 3,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.95 : 5,539.91 = 2,840.97 : x
  2. Step 2: Convert to fraction form
    4,021.95/5,539.91 = 2,840.97/x
  3. Step 3: Cross multiply
    4,021.95x = 5,539.91 × 2,840.97
  4. Step 4: Simplify right side
    4,021.95x = 15,738,703.91
  5. Step 5: Solve for x
    x = 15,738,703.91/4,021.95
  6. Step 6: Final answer
    x = 3,913.20

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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.