Home / 3,485.76-4,812.60-2,160.88

Finding the Fourth Proportional to 3,485.76, 4,812.60 and 2,160.88

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Solution

The fourth proportional to 3,485.76, 4,812.60 and 2,160.88 is: 2,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.76 : 4,812.60 = 2,160.88 : x
  2. Step 2: Convert to fraction form
    3,485.76/4,812.60 = 2,160.88/x
  3. Step 3: Cross multiply
    3,485.76x = 4,812.60 × 2,160.88
  4. Step 4: Simplify right side
    3,485.76x = 10,399,451.09
  5. Step 5: Solve for x
    x = 10,399,451.09/3,485.76
  6. Step 6: Final answer
    x = 2,983.41

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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.