Home / 3,185.61-4,777.38-2,208.75

Finding the Fourth Proportional to 3,185.61, 4,777.38 and 2,208.75

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Solution

The fourth proportional to 3,185.61, 4,777.38 and 2,208.75 is: 3,312.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.61 : 4,777.38 = 2,208.75 : x
  2. Step 2: Convert to fraction form
    3,185.61/4,777.38 = 2,208.75/x
  3. Step 3: Cross multiply
    3,185.61x = 4,777.38 × 2,208.75
  4. Step 4: Simplify right side
    3,185.61x = 10,552,038.08
  5. Step 5: Solve for x
    x = 10,552,038.08/3,185.61
  6. Step 6: Final answer
    x = 3,312.41

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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.