Home / 2,988.26-4,124.42-1,729.16

Finding the Fourth Proportional to 2,988.26, 4,124.42 and 1,729.16

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Solution

The fourth proportional to 2,988.26, 4,124.42 and 1,729.16 is: 2,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.26 : 4,124.42 = 1,729.16 : x
  2. Step 2: Convert to fraction form
    2,988.26/4,124.42 = 1,729.16/x
  3. Step 3: Cross multiply
    2,988.26x = 4,124.42 × 1,729.16
  4. Step 4: Simplify right side
    2,988.26x = 7,131,782.09
  5. Step 5: Solve for x
    x = 7,131,782.09/2,988.26
  6. Step 6: Final answer
    x = 2,386.60

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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.