Home / 5,740.29-7,921.47-3,222.36

Finding the Fourth Proportional to 5,740.29, 7,921.47 and 3,222.36

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Solution

The fourth proportional to 5,740.29, 7,921.47 and 3,222.36 is: 4,446.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.29 : 7,921.47 = 3,222.36 : x
  2. Step 2: Convert to fraction form
    5,740.29/7,921.47 = 3,222.36/x
  3. Step 3: Cross multiply
    5,740.29x = 7,921.47 × 3,222.36
  4. Step 4: Simplify right side
    5,740.29x = 25,525,828.07
  5. Step 5: Solve for x
    x = 25,525,828.07/5,740.29
  6. Step 6: Final answer
    x = 4,446.78

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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.