Home / 7,769.63-11,645.80-3,088.42

Finding the Fourth Proportional to 7,769.63, 11,645.80 and 3,088.42

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Solution

The fourth proportional to 7,769.63, 11,645.80 and 3,088.42 is: 4,629.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.63 : 11,645.80 = 3,088.42 : x
  2. Step 2: Convert to fraction form
    7,769.63/11,645.80 = 3,088.42/x
  3. Step 3: Cross multiply
    7,769.63x = 11,645.80 × 3,088.42
  4. Step 4: Simplify right side
    7,769.63x = 35,967,121.64
  5. Step 5: Solve for x
    x = 35,967,121.64/7,769.63
  6. Step 6: Final answer
    x = 4,629.19

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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.