Home / 1,958.40-2,937.60-1,192.32

Finding the Fourth Proportional to 1,958.40, 2,937.60 and 1,192.32

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Solution

The fourth proportional to 1,958.40, 2,937.60 and 1,192.32 is: 1,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.40 : 2,937.60 = 1,192.32 : x
  2. Step 2: Convert to fraction form
    1,958.40/2,937.60 = 1,192.32/x
  3. Step 3: Cross multiply
    1,958.40x = 2,937.60 × 1,192.32
  4. Step 4: Simplify right side
    1,958.40x = 3,502,559.23
  5. Step 5: Solve for x
    x = 3,502,559.23/1,958.40
  6. Step 6: Final answer
    x = 1,788.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.