Home / 3,970.60-5,480.32-2,292.30

Finding the Fourth Proportional to 3,970.60, 5,480.32 and 2,292.30

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Solution

The fourth proportional to 3,970.60, 5,480.32 and 2,292.30 is: 3,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.60 : 5,480.32 = 2,292.30 : x
  2. Step 2: Convert to fraction form
    3,970.60/5,480.32 = 2,292.30/x
  3. Step 3: Cross multiply
    3,970.60x = 5,480.32 × 2,292.30
  4. Step 4: Simplify right side
    3,970.60x = 12,562,537.54
  5. Step 5: Solve for x
    x = 12,562,537.54/3,970.60
  6. Step 6: Final answer
    x = 3,163.89

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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.