Home / 3,137.26-4,707.70-1,676.40

Finding the Fourth Proportional to 3,137.26, 4,707.70 and 1,676.40

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Solution

The fourth proportional to 3,137.26, 4,707.70 and 1,676.40 is: 2,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.26 : 4,707.70 = 1,676.40 : x
  2. Step 2: Convert to fraction form
    3,137.26/4,707.70 = 1,676.40/x
  3. Step 3: Cross multiply
    3,137.26x = 4,707.70 × 1,676.40
  4. Step 4: Simplify right side
    3,137.26x = 7,891,988.28
  5. Step 5: Solve for x
    x = 7,891,988.28/3,137.26
  6. Step 6: Final answer
    x = 2,515.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.