Home / 7,390.18-11,080.68-3,634.48

Finding the Fourth Proportional to 7,390.18, 11,080.68 and 3,634.48

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Solution

The fourth proportional to 7,390.18, 11,080.68 and 3,634.48 is: 5,449.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.18 : 11,080.68 = 3,634.48 : x
  2. Step 2: Convert to fraction form
    7,390.18/11,080.68 = 3,634.48/x
  3. Step 3: Cross multiply
    7,390.18x = 11,080.68 × 3,634.48
  4. Step 4: Simplify right side
    7,390.18x = 40,272,509.85
  5. Step 5: Solve for x
    x = 40,272,509.85/7,390.18
  6. Step 6: Final answer
    x = 5,449.46

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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.