Home / 5,661.36-8,486.79-2,150.31

Finding the Fourth Proportional to 5,661.36, 8,486.79 and 2,150.31

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Solution

The fourth proportional to 5,661.36, 8,486.79 and 2,150.31 is: 3,223.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.36 : 8,486.79 = 2,150.31 : x
  2. Step 2: Convert to fraction form
    5,661.36/8,486.79 = 2,150.31/x
  3. Step 3: Cross multiply
    5,661.36x = 8,486.79 × 2,150.31
  4. Step 4: Simplify right side
    5,661.36x = 18,249,229.40
  5. Step 5: Solve for x
    x = 18,249,229.40/5,661.36
  6. Step 6: Final answer
    x = 3,223.47

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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.