Home / 6,449.20-9,666.60-3,677.20

Finding the Fourth Proportional to 6,449.20, 9,666.60 and 3,677.20

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Solution

The fourth proportional to 6,449.20, 9,666.60 and 3,677.20 is: 5,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.20 : 9,666.60 = 3,677.20 : x
  2. Step 2: Convert to fraction form
    6,449.20/9,666.60 = 3,677.20/x
  3. Step 3: Cross multiply
    6,449.20x = 9,666.60 × 3,677.20
  4. Step 4: Simplify right side
    6,449.20x = 35,546,021.52
  5. Step 5: Solve for x
    x = 35,546,021.52/6,449.20
  6. Step 6: Final answer
    x = 5,511.69

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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.