Home / 5,208.77-7,185.61-3,218.60

Finding the Fourth Proportional to 5,208.77, 7,185.61 and 3,218.60

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Solution

The fourth proportional to 5,208.77, 7,185.61 and 3,218.60 is: 4,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.77 : 7,185.61 = 3,218.60 : x
  2. Step 2: Convert to fraction form
    5,208.77/7,185.61 = 3,218.60/x
  3. Step 3: Cross multiply
    5,208.77x = 7,185.61 × 3,218.60
  4. Step 4: Simplify right side
    5,208.77x = 23,127,626.33
  5. Step 5: Solve for x
    x = 23,127,626.33/5,208.77
  6. Step 6: Final answer
    x = 4,440.13

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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.