Home / 6,485.19-9,725.74-2,101.63

Finding the Fourth Proportional to 6,485.19, 9,725.74 and 2,101.63

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Solution

The fourth proportional to 6,485.19, 9,725.74 and 2,101.63 is: 3,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.19 : 9,725.74 = 2,101.63 : x
  2. Step 2: Convert to fraction form
    6,485.19/9,725.74 = 2,101.63/x
  3. Step 3: Cross multiply
    6,485.19x = 9,725.74 × 2,101.63
  4. Step 4: Simplify right side
    6,485.19x = 20,439,906.96
  5. Step 5: Solve for x
    x = 20,439,906.96/6,485.19
  6. Step 6: Final answer
    x = 3,151.78

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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.