Home / 2,351.25-3,245.85-1,356.36

Finding the Fourth Proportional to 2,351.25, 3,245.85 and 1,356.36

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Solution

The fourth proportional to 2,351.25, 3,245.85 and 1,356.36 is: 1,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.25 : 3,245.85 = 1,356.36 : x
  2. Step 2: Convert to fraction form
    2,351.25/3,245.85 = 1,356.36/x
  3. Step 3: Cross multiply
    2,351.25x = 3,245.85 × 1,356.36
  4. Step 4: Simplify right side
    2,351.25x = 4,402,541.11
  5. Step 5: Solve for x
    x = 4,402,541.11/2,351.25
  6. Step 6: Final answer
    x = 1,872.43

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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.