Home / 1,939.74-2,677.35-1,153.98

Finding the Fourth Proportional to 1,939.74, 2,677.35 and 1,153.98

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Solution

The fourth proportional to 1,939.74, 2,677.35 and 1,153.98 is: 1,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.74 : 2,677.35 = 1,153.98 : x
  2. Step 2: Convert to fraction form
    1,939.74/2,677.35 = 1,153.98/x
  3. Step 3: Cross multiply
    1,939.74x = 2,677.35 × 1,153.98
  4. Step 4: Simplify right side
    1,939.74x = 3,089,608.35
  5. Step 5: Solve for x
    x = 3,089,608.35/1,939.74
  6. Step 6: Final answer
    x = 1,592.80

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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.