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Finding the Fourth Proportional to 6,081.80, 9,129.90 and 6,038.60

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Solution

The fourth proportional to 6,081.80, 9,129.90 and 6,038.60 is: 9,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.80 : 9,129.90 = 6,038.60 : x
  2. Step 2: Convert to fraction form
    6,081.80/9,129.90 = 6,038.60/x
  3. Step 3: Cross multiply
    6,081.80x = 9,129.90 × 6,038.60
  4. Step 4: Simplify right side
    6,081.80x = 55,131,814.14
  5. Step 5: Solve for x
    x = 55,131,814.14/6,081.80
  6. Step 6: Final answer
    x = 9,065.05

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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.