Home / 2,914.90-4,021.99-1,720.26

Finding the Fourth Proportional to 2,914.90, 4,021.99 and 1,720.26

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Solution

The fourth proportional to 2,914.90, 4,021.99 and 1,720.26 is: 2,373.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.90 : 4,021.99 = 1,720.26 : x
  2. Step 2: Convert to fraction form
    2,914.90/4,021.99 = 1,720.26/x
  3. Step 3: Cross multiply
    2,914.90x = 4,021.99 × 1,720.26
  4. Step 4: Simplify right side
    2,914.90x = 6,918,868.52
  5. Step 5: Solve for x
    x = 6,918,868.52/2,914.90
  6. Step 6: Final answer
    x = 2,373.62

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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.