Home / 5,012.26-7,515.86-1,679.36

Finding the Fourth Proportional to 5,012.26, 7,515.86 and 1,679.36

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Solution

The fourth proportional to 5,012.26, 7,515.86 and 1,679.36 is: 2,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.26 : 7,515.86 = 1,679.36 : x
  2. Step 2: Convert to fraction form
    5,012.26/7,515.86 = 1,679.36/x
  3. Step 3: Cross multiply
    5,012.26x = 7,515.86 × 1,679.36
  4. Step 4: Simplify right side
    5,012.26x = 12,621,788.67
  5. Step 5: Solve for x
    x = 12,621,788.67/5,012.26
  6. Step 6: Final answer
    x = 2,518.18

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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.