Home / 2,708.86-3,738-1,714.45

Finding the Fourth Proportional to 2,708.86, 3,738 and 1,714.45

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Solution

The fourth proportional to 2,708.86, 3,738 and 1,714.45 is: 2,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.86 : 3,738 = 1,714.45 : x
  2. Step 2: Convert to fraction form
    2,708.86/3,738 = 1,714.45/x
  3. Step 3: Cross multiply
    2,708.86x = 3,738 × 1,714.45
  4. Step 4: Simplify right side
    2,708.86x = 6,408,614.10
  5. Step 5: Solve for x
    x = 6,408,614.10/2,708.86
  6. Step 6: Final answer
    x = 2,365.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.