Home / 4,811.20-7,212.06-1,891.60

Finding the Fourth Proportional to 4,811.20, 7,212.06 and 1,891.60

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Solution

The fourth proportional to 4,811.20, 7,212.06 and 1,891.60 is: 2,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.20 : 7,212.06 = 1,891.60 : x
  2. Step 2: Convert to fraction form
    4,811.20/7,212.06 = 1,891.60/x
  3. Step 3: Cross multiply
    4,811.20x = 7,212.06 × 1,891.60
  4. Step 4: Simplify right side
    4,811.20x = 13,642,332.70
  5. Step 5: Solve for x
    x = 13,642,332.70/4,811.20
  6. Step 6: Final answer
    x = 2,835.54

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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.