Home / 2,971.48-4,099.70-1,729.24

Finding the Fourth Proportional to 2,971.48, 4,099.70 and 1,729.24

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Solution

The fourth proportional to 2,971.48, 4,099.70 and 1,729.24 is: 2,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.48 : 4,099.70 = 1,729.24 : x
  2. Step 2: Convert to fraction form
    2,971.48/4,099.70 = 1,729.24/x
  3. Step 3: Cross multiply
    2,971.48x = 4,099.70 × 1,729.24
  4. Step 4: Simplify right side
    2,971.48x = 7,089,365.23
  5. Step 5: Solve for x
    x = 7,089,365.23/2,971.48
  6. Step 6: Final answer
    x = 2,385.80

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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.