Home / 6,561.71-9,055.37-3,908.75

Finding the Fourth Proportional to 6,561.71, 9,055.37 and 3,908.75

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Solution

The fourth proportional to 6,561.71, 9,055.37 and 3,908.75 is: 5,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,561.71 : 9,055.37 = 3,908.75 : x
  2. Step 2: Convert to fraction form
    6,561.71/9,055.37 = 3,908.75/x
  3. Step 3: Cross multiply
    6,561.71x = 9,055.37 × 3,908.75
  4. Step 4: Simplify right side
    6,561.71x = 35,395,112.67
  5. Step 5: Solve for x
    x = 35,395,112.67/6,561.71
  6. Step 6: Final answer
    x = 5,394.19

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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.