Home / 4,080.60-6,121.83-1,307.46

Finding the Fourth Proportional to 4,080.60, 6,121.83 and 1,307.46

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Solution

The fourth proportional to 4,080.60, 6,121.83 and 1,307.46 is: 1,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.60 : 6,121.83 = 1,307.46 : x
  2. Step 2: Convert to fraction form
    4,080.60/6,121.83 = 1,307.46/x
  3. Step 3: Cross multiply
    4,080.60x = 6,121.83 × 1,307.46
  4. Step 4: Simplify right side
    4,080.60x = 8,004,047.85
  5. Step 5: Solve for x
    x = 8,004,047.85/4,080.60
  6. Step 6: Final answer
    x = 1,961.49

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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.