Home / 2,830.33-3,905.76-1,571.36

Finding the Fourth Proportional to 2,830.33, 3,905.76 and 1,571.36

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Solution

The fourth proportional to 2,830.33, 3,905.76 and 1,571.36 is: 2,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.33 : 3,905.76 = 1,571.36 : x
  2. Step 2: Convert to fraction form
    2,830.33/3,905.76 = 1,571.36/x
  3. Step 3: Cross multiply
    2,830.33x = 3,905.76 × 1,571.36
  4. Step 4: Simplify right side
    2,830.33x = 6,137,355.03
  5. Step 5: Solve for x
    x = 6,137,355.03/2,830.33
  6. Step 6: Final answer
    x = 2,168.42

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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.