Home / 1,393.86-2,103.45-1,347.39

Finding the Fourth Proportional to 1,393.86, 2,103.45 and 1,347.39

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Solution

The fourth proportional to 1,393.86, 2,103.45 and 1,347.39 is: 2,033.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.86 : 2,103.45 = 1,347.39 : x
  2. Step 2: Convert to fraction form
    1,393.86/2,103.45 = 1,347.39/x
  3. Step 3: Cross multiply
    1,393.86x = 2,103.45 × 1,347.39
  4. Step 4: Simplify right side
    1,393.86x = 2,834,162.44
  5. Step 5: Solve for x
    x = 2,834,162.44/1,393.86
  6. Step 6: Final answer
    x = 2,033.31

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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.