Home / 1,393.22-2,077.36-1,368.62

Finding the Fourth Proportional to 1,393.22, 2,077.36 and 1,368.62

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Solution

The fourth proportional to 1,393.22, 2,077.36 and 1,368.62 is: 2,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.22 : 2,077.36 = 1,368.62 : x
  2. Step 2: Convert to fraction form
    1,393.22/2,077.36 = 1,368.62/x
  3. Step 3: Cross multiply
    1,393.22x = 2,077.36 × 1,368.62
  4. Step 4: Simplify right side
    1,393.22x = 2,843,116.44
  5. Step 5: Solve for x
    x = 2,843,116.44/1,393.22
  6. Step 6: Final answer
    x = 2,040.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.