Home / 3,825.90-5,281.02-2,940.48

Finding the Fourth Proportional to 3,825.90, 5,281.02 and 2,940.48

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Solution

The fourth proportional to 3,825.90, 5,281.02 and 2,940.48 is: 4,058.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.90 : 5,281.02 = 2,940.48 : x
  2. Step 2: Convert to fraction form
    3,825.90/5,281.02 = 2,940.48/x
  3. Step 3: Cross multiply
    3,825.90x = 5,281.02 × 2,940.48
  4. Step 4: Simplify right side
    3,825.90x = 15,528,733.69
  5. Step 5: Solve for x
    x = 15,528,733.69/3,825.90
  6. Step 6: Final answer
    x = 4,058.84

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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.