Home / 3,483.37-4,806.78-1,911.55

Finding the Fourth Proportional to 3,483.37, 4,806.78 and 1,911.55

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Solution

The fourth proportional to 3,483.37, 4,806.78 and 1,911.55 is: 2,637.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483.37 : 4,806.78 = 1,911.55 : x
  2. Step 2: Convert to fraction form
    3,483.37/4,806.78 = 1,911.55/x
  3. Step 3: Cross multiply
    3,483.37x = 4,806.78 × 1,911.55
  4. Step 4: Simplify right side
    3,483.37x = 9,188,400.31
  5. Step 5: Solve for x
    x = 9,188,400.31/3,483.37
  6. Step 6: Final answer
    x = 2,637.79

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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.