Home / 3,701.09-5,107.59-2,129.22

Finding the Fourth Proportional to 3,701.09, 5,107.59 and 2,129.22

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Solution

The fourth proportional to 3,701.09, 5,107.59 and 2,129.22 is: 2,938.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.09 : 5,107.59 = 2,129.22 : x
  2. Step 2: Convert to fraction form
    3,701.09/5,107.59 = 2,129.22/x
  3. Step 3: Cross multiply
    3,701.09x = 5,107.59 × 2,129.22
  4. Step 4: Simplify right side
    3,701.09x = 10,875,182.78
  5. Step 5: Solve for x
    x = 10,875,182.78/3,701.09
  6. Step 6: Final answer
    x = 2,938.37

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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.