Home / 2,814.40-3,884.12-1,635.45

Finding the Fourth Proportional to 2,814.40, 3,884.12 and 1,635.45

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Solution

The fourth proportional to 2,814.40, 3,884.12 and 1,635.45 is: 2,257.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.40 : 3,884.12 = 1,635.45 : x
  2. Step 2: Convert to fraction form
    2,814.40/3,884.12 = 1,635.45/x
  3. Step 3: Cross multiply
    2,814.40x = 3,884.12 × 1,635.45
  4. Step 4: Simplify right side
    2,814.40x = 6,352,284.05
  5. Step 5: Solve for x
    x = 6,352,284.05/2,814.40
  6. Step 6: Final answer
    x = 2,257.07

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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.