Home / 1,962.58-2,708.49-1,372.90

Finding the Fourth Proportional to 1,962.58, 2,708.49 and 1,372.90

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Solution

The fourth proportional to 1,962.58, 2,708.49 and 1,372.90 is: 1,894.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.58 : 2,708.49 = 1,372.90 : x
  2. Step 2: Convert to fraction form
    1,962.58/2,708.49 = 1,372.90/x
  3. Step 3: Cross multiply
    1,962.58x = 2,708.49 × 1,372.90
  4. Step 4: Simplify right side
    1,962.58x = 3,718,485.92
  5. Step 5: Solve for x
    x = 3,718,485.92/1,962.58
  6. Step 6: Final answer
    x = 1,894.69

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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.