Home / 7,811.05-10,779.25-4,274.26

Finding the Fourth Proportional to 7,811.05, 10,779.25 and 4,274.26

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Solution

The fourth proportional to 7,811.05, 10,779.25 and 4,274.26 is: 5,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.05 : 10,779.25 = 4,274.26 : x
  2. Step 2: Convert to fraction form
    7,811.05/10,779.25 = 4,274.26/x
  3. Step 3: Cross multiply
    7,811.05x = 10,779.25 × 4,274.26
  4. Step 4: Simplify right side
    7,811.05x = 46,073,287.60
  5. Step 5: Solve for x
    x = 46,073,287.60/7,811.05
  6. Step 6: Final answer
    x = 5,898.48

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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.