Home / 5,825.39-8,038.77-3,172.79

Finding the Fourth Proportional to 5,825.39, 8,038.77 and 3,172.79

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Solution

The fourth proportional to 5,825.39, 8,038.77 and 3,172.79 is: 4,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,825.39 : 8,038.77 = 3,172.79 : x
  2. Step 2: Convert to fraction form
    5,825.39/8,038.77 = 3,172.79/x
  3. Step 3: Cross multiply
    5,825.39x = 8,038.77 × 3,172.79
  4. Step 4: Simplify right side
    5,825.39x = 25,505,329.07
  5. Step 5: Solve for x
    x = 25,505,329.07/5,825.39
  6. Step 6: Final answer
    x = 4,378.30

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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.