Home / 1,190.40-1,794.53-1,111.11

Finding the Fourth Proportional to 1,190.40, 1,794.53 and 1,111.11

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Solution

The fourth proportional to 1,190.40, 1,794.53 and 1,111.11 is: 1,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.40 : 1,794.53 = 1,111.11 : x
  2. Step 2: Convert to fraction form
    1,190.40/1,794.53 = 1,111.11/x
  3. Step 3: Cross multiply
    1,190.40x = 1,794.53 × 1,111.11
  4. Step 4: Simplify right side
    1,190.40x = 1,993,914.67
  5. Step 5: Solve for x
    x = 1,993,914.67/1,190.40
  6. Step 6: Final answer
    x = 1,675.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.