Home / 2,814.15-3,883.52-2,069.50

Finding the Fourth Proportional to 2,814.15, 3,883.52 and 2,069.50

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Solution

The fourth proportional to 2,814.15, 3,883.52 and 2,069.50 is: 2,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.15 : 3,883.52 = 2,069.50 : x
  2. Step 2: Convert to fraction form
    2,814.15/3,883.52 = 2,069.50/x
  3. Step 3: Cross multiply
    2,814.15x = 3,883.52 × 2,069.50
  4. Step 4: Simplify right side
    2,814.15x = 8,036,944.64
  5. Step 5: Solve for x
    x = 8,036,944.64/2,814.15
  6. Step 6: Final answer
    x = 2,855.90

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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.