Home / 2,971.13-4,100.15-1,729.13

Finding the Fourth Proportional to 2,971.13, 4,100.15 and 1,729.13

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Solution

The fourth proportional to 2,971.13, 4,100.15 and 1,729.13 is: 2,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.13 : 4,100.15 = 1,729.13 : x
  2. Step 2: Convert to fraction form
    2,971.13/4,100.15 = 1,729.13/x
  3. Step 3: Cross multiply
    2,971.13x = 4,100.15 × 1,729.13
  4. Step 4: Simplify right side
    2,971.13x = 7,089,676.19
  5. Step 5: Solve for x
    x = 7,089,676.19/2,971.13
  6. Step 6: Final answer
    x = 2,386.19

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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.