Home / 7,138.58-9,849.66-4,485.02

Finding the Fourth Proportional to 7,138.58, 9,849.66 and 4,485.02

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Solution

The fourth proportional to 7,138.58, 9,849.66 and 4,485.02 is: 6,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.58 : 9,849.66 = 4,485.02 : x
  2. Step 2: Convert to fraction form
    7,138.58/9,849.66 = 4,485.02/x
  3. Step 3: Cross multiply
    7,138.58x = 9,849.66 × 4,485.02
  4. Step 4: Simplify right side
    7,138.58x = 44,175,922.09
  5. Step 5: Solve for x
    x = 44,175,922.09/7,138.58
  6. Step 6: Final answer
    x = 6,188.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.