Home / 7,290.33-10,921.19-3,782.63

Finding the Fourth Proportional to 7,290.33, 10,921.19 and 3,782.63

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Solution

The fourth proportional to 7,290.33, 10,921.19 and 3,782.63 is: 5,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.33 : 10,921.19 = 3,782.63 : x
  2. Step 2: Convert to fraction form
    7,290.33/10,921.19 = 3,782.63/x
  3. Step 3: Cross multiply
    7,290.33x = 10,921.19 × 3,782.63
  4. Step 4: Simplify right side
    7,290.33x = 41,310,820.93
  5. Step 5: Solve for x
    x = 41,310,820.93/7,290.33
  6. Step 6: Final answer
    x = 5,666.52

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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.