Home / 2,453.45-3,394.62-2,139.36

Finding the Fourth Proportional to 2,453.45, 3,394.62 and 2,139.36

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Solution

The fourth proportional to 2,453.45, 3,394.62 and 2,139.36 is: 2,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.45 : 3,394.62 = 2,139.36 : x
  2. Step 2: Convert to fraction form
    2,453.45/3,394.62 = 2,139.36/x
  3. Step 3: Cross multiply
    2,453.45x = 3,394.62 × 2,139.36
  4. Step 4: Simplify right side
    2,453.45x = 7,262,314.24
  5. Step 5: Solve for x
    x = 7,262,314.24/2,453.45
  6. Step 6: Final answer
    x = 2,960.05

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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.