Home / 2,739.90-3,780.76-1,677.93

Finding the Fourth Proportional to 2,739.90, 3,780.76 and 1,677.93

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Solution

The fourth proportional to 2,739.90, 3,780.76 and 1,677.93 is: 2,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.90 : 3,780.76 = 1,677.93 : x
  2. Step 2: Convert to fraction form
    2,739.90/3,780.76 = 1,677.93/x
  3. Step 3: Cross multiply
    2,739.90x = 3,780.76 × 1,677.93
  4. Step 4: Simplify right side
    2,739.90x = 6,343,850.63
  5. Step 5: Solve for x
    x = 6,343,850.63/2,739.90
  6. Step 6: Final answer
    x = 2,315.36

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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.