Home / 1,393.18-2,091.96-1,133.56

Finding the Fourth Proportional to 1,393.18, 2,091.96 and 1,133.56

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Solution

The fourth proportional to 1,393.18, 2,091.96 and 1,133.56 is: 1,702.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.18 : 2,091.96 = 1,133.56 : x
  2. Step 2: Convert to fraction form
    1,393.18/2,091.96 = 1,133.56/x
  3. Step 3: Cross multiply
    1,393.18x = 2,091.96 × 1,133.56
  4. Step 4: Simplify right side
    1,393.18x = 2,371,362.18
  5. Step 5: Solve for x
    x = 2,371,362.18/1,393.18
  6. Step 6: Final answer
    x = 1,702.12

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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.