Home / 7,811.37-10,779.35-4,274.73

Finding the Fourth Proportional to 7,811.37, 10,779.35 and 4,274.73

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Solution

The fourth proportional to 7,811.37, 10,779.35 and 4,274.73 is: 5,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.37 : 10,779.35 = 4,274.73 : x
  2. Step 2: Convert to fraction form
    7,811.37/10,779.35 = 4,274.73/x
  3. Step 3: Cross multiply
    7,811.37x = 10,779.35 × 4,274.73
  4. Step 4: Simplify right side
    7,811.37x = 46,078,789.45
  5. Step 5: Solve for x
    x = 46,078,789.45/7,811.37
  6. Step 6: Final answer
    x = 5,898.94

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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.