Home / 1,712.40-2,362.32-1,083.72

Finding the Fourth Proportional to 1,712.40, 2,362.32 and 1,083.72

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Solution

The fourth proportional to 1,712.40, 2,362.32 and 1,083.72 is: 1,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.40 : 2,362.32 = 1,083.72 : x
  2. Step 2: Convert to fraction form
    1,712.40/2,362.32 = 1,083.72/x
  3. Step 3: Cross multiply
    1,712.40x = 2,362.32 × 1,083.72
  4. Step 4: Simplify right side
    1,712.40x = 2,560,093.43
  5. Step 5: Solve for x
    x = 2,560,093.43/1,712.40
  6. Step 6: Final answer
    x = 1,495.03

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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.