Home / 2,101.19-3,147.35-1,004.45

Finding the Fourth Proportional to 2,101.19, 3,147.35 and 1,004.45

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Solution

The fourth proportional to 2,101.19, 3,147.35 and 1,004.45 is: 1,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.19 : 3,147.35 = 1,004.45 : x
  2. Step 2: Convert to fraction form
    2,101.19/3,147.35 = 1,004.45/x
  3. Step 3: Cross multiply
    2,101.19x = 3,147.35 × 1,004.45
  4. Step 4: Simplify right side
    2,101.19x = 3,161,334.95
  5. Step 5: Solve for x
    x = 3,161,334.95/2,101.19
  6. Step 6: Final answer
    x = 1,504.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.