Home / 2,453.21-3,385.36-1,391.08

Finding the Fourth Proportional to 2,453.21, 3,385.36 and 1,391.08

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Solution

The fourth proportional to 2,453.21, 3,385.36 and 1,391.08 is: 1,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.21 : 3,385.36 = 1,391.08 : x
  2. Step 2: Convert to fraction form
    2,453.21/3,385.36 = 1,391.08/x
  3. Step 3: Cross multiply
    2,453.21x = 3,385.36 × 1,391.08
  4. Step 4: Simplify right side
    2,453.21x = 4,709,282.71
  5. Step 5: Solve for x
    x = 4,709,282.71/2,453.21
  6. Step 6: Final answer
    x = 1,919.64

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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.