Home / 2,351.40-3,245.36-1,356.54

Finding the Fourth Proportional to 2,351.40, 3,245.36 and 1,356.54

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Solution

The fourth proportional to 2,351.40, 3,245.36 and 1,356.54 is: 1,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.40 : 3,245.36 = 1,356.54 : x
  2. Step 2: Convert to fraction form
    2,351.40/3,245.36 = 1,356.54/x
  3. Step 3: Cross multiply
    2,351.40x = 3,245.36 × 1,356.54
  4. Step 4: Simplify right side
    2,351.40x = 4,402,453.87
  5. Step 5: Solve for x
    x = 4,402,453.87/2,351.40
  6. Step 6: Final answer
    x = 1,872.27

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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.