Home / 9,131.22-13,698.87-2,891.58

Finding the Fourth Proportional to 9,131.22, 13,698.87 and 2,891.58

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Solution

The fourth proportional to 9,131.22, 13,698.87 and 2,891.58 is: 4,338.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.22 : 13,698.87 = 2,891.58 : x
  2. Step 2: Convert to fraction form
    9,131.22/13,698.87 = 2,891.58/x
  3. Step 3: Cross multiply
    9,131.22x = 13,698.87 × 2,891.58
  4. Step 4: Simplify right side
    9,131.22x = 39,611,378.51
  5. Step 5: Solve for x
    x = 39,611,378.51/9,131.22
  6. Step 6: Final answer
    x = 4,338.02

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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.