Home / 1,922.96-2,650.92-1,370

Finding the Fourth Proportional to 1,922.96, 2,650.92 and 1,370

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Solution

The fourth proportional to 1,922.96, 2,650.92 and 1,370 is: 1,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.96 : 2,650.92 = 1,370 : x
  2. Step 2: Convert to fraction form
    1,922.96/2,650.92 = 1,370/x
  3. Step 3: Cross multiply
    1,922.96x = 2,650.92 × 1,370
  4. Step 4: Simplify right side
    1,922.96x = 3,631,760.40
  5. Step 5: Solve for x
    x = 3,631,760.40/1,922.96
  6. Step 6: Final answer
    x = 1,888.63

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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.