Home / 5,210.90-7,189.88-3,085.37

Finding the Fourth Proportional to 5,210.90, 7,189.88 and 3,085.37

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Solution

The fourth proportional to 5,210.90, 7,189.88 and 3,085.37 is: 4,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.90 : 7,189.88 = 3,085.37 : x
  2. Step 2: Convert to fraction form
    5,210.90/7,189.88 = 3,085.37/x
  3. Step 3: Cross multiply
    5,210.90x = 7,189.88 × 3,085.37
  4. Step 4: Simplify right side
    5,210.90x = 22,183,388.68
  5. Step 5: Solve for x
    x = 22,183,388.68/5,210.90
  6. Step 6: Final answer
    x = 4,257.12

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1.5x scale

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.