Home / 3,485.37-4,809.54-1,913.55

Finding the Fourth Proportional to 3,485.37, 4,809.54 and 1,913.55

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Solution

The fourth proportional to 3,485.37, 4,809.54 and 1,913.55 is: 2,640.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.37 : 4,809.54 = 1,913.55 : x
  2. Step 2: Convert to fraction form
    3,485.37/4,809.54 = 1,913.55/x
  3. Step 3: Cross multiply
    3,485.37x = 4,809.54 × 1,913.55
  4. Step 4: Simplify right side
    3,485.37x = 9,203,295.27
  5. Step 5: Solve for x
    x = 9,203,295.27/3,485.37
  6. Step 6: Final answer
    x = 2,640.55

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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.