Home / 3,065.80-4,230.76-2,814.75

Finding the Fourth Proportional to 3,065.80, 4,230.76 and 2,814.75

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Solution

The fourth proportional to 3,065.80, 4,230.76 and 2,814.75 is: 3,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.80 : 4,230.76 = 2,814.75 : x
  2. Step 2: Convert to fraction form
    3,065.80/4,230.76 = 2,814.75/x
  3. Step 3: Cross multiply
    3,065.80x = 4,230.76 × 2,814.75
  4. Step 4: Simplify right side
    3,065.80x = 11,908,522.03
  5. Step 5: Solve for x
    x = 11,908,522.03/3,065.80
  6. Step 6: Final answer
    x = 3,884.31

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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.