Home / 5,319.33-7,980.26-2,680.35

Finding the Fourth Proportional to 5,319.33, 7,980.26 and 2,680.35

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Solution

The fourth proportional to 5,319.33, 7,980.26 and 2,680.35 is: 4,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.33 : 7,980.26 = 2,680.35 : x
  2. Step 2: Convert to fraction form
    5,319.33/7,980.26 = 2,680.35/x
  3. Step 3: Cross multiply
    5,319.33x = 7,980.26 × 2,680.35
  4. Step 4: Simplify right side
    5,319.33x = 21,389,846.56
  5. Step 5: Solve for x
    x = 21,389,846.56/5,319.33
  6. Step 6: Final answer
    x = 4,021.16

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1.5x scale

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.