Home / 3,547.09-5,322.61-2,161.38

Finding the Fourth Proportional to 3,547.09, 5,322.61 and 2,161.38

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Solution

The fourth proportional to 3,547.09, 5,322.61 and 2,161.38 is: 3,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.09 : 5,322.61 = 2,161.38 : x
  2. Step 2: Convert to fraction form
    3,547.09/5,322.61 = 2,161.38/x
  3. Step 3: Cross multiply
    3,547.09x = 5,322.61 × 2,161.38
  4. Step 4: Simplify right side
    3,547.09x = 11,504,205.46
  5. Step 5: Solve for x
    x = 11,504,205.46/3,547.09
  6. Step 6: Final answer
    x = 3,243.28

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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.