Home / 6,891.22-10,338.72-3,606.40

Finding the Fourth Proportional to 6,891.22, 10,338.72 and 3,606.40

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Solution

The fourth proportional to 6,891.22, 10,338.72 and 3,606.40 is: 5,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.22 : 10,338.72 = 3,606.40 : x
  2. Step 2: Convert to fraction form
    6,891.22/10,338.72 = 3,606.40/x
  3. Step 3: Cross multiply
    6,891.22x = 10,338.72 × 3,606.40
  4. Step 4: Simplify right side
    6,891.22x = 37,285,559.81
  5. Step 5: Solve for x
    x = 37,285,559.81/6,891.22
  6. Step 6: Final answer
    x = 5,410.59

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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.