Home / 3,085.26-4,257.77-1,688.01

Finding the Fourth Proportional to 3,085.26, 4,257.77 and 1,688.01

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Solution

The fourth proportional to 3,085.26, 4,257.77 and 1,688.01 is: 2,329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.26 : 4,257.77 = 1,688.01 : x
  2. Step 2: Convert to fraction form
    3,085.26/4,257.77 = 1,688.01/x
  3. Step 3: Cross multiply
    3,085.26x = 4,257.77 × 1,688.01
  4. Step 4: Simplify right side
    3,085.26x = 7,187,149.90
  5. Step 5: Solve for x
    x = 7,187,149.90/3,085.26
  6. Step 6: Final answer
    x = 2,329.51

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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.