Home / 3,101.04-4,280.45-2,109.33

Finding the Fourth Proportional to 3,101.04, 4,280.45 and 2,109.33

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Solution

The fourth proportional to 3,101.04, 4,280.45 and 2,109.33 is: 2,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.04 : 4,280.45 = 2,109.33 : x
  2. Step 2: Convert to fraction form
    3,101.04/4,280.45 = 2,109.33/x
  3. Step 3: Cross multiply
    3,101.04x = 4,280.45 × 2,109.33
  4. Step 4: Simplify right side
    3,101.04x = 9,028,871.05
  5. Step 5: Solve for x
    x = 9,028,871.05/3,101.04
  6. Step 6: Final answer
    x = 2,911.56

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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.