Home / 6,880.90-10,317.69-2,980.75

Finding the Fourth Proportional to 6,880.90, 10,317.69 and 2,980.75

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Solution

The fourth proportional to 6,880.90, 10,317.69 and 2,980.75 is: 4,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.90 : 10,317.69 = 2,980.75 : x
  2. Step 2: Convert to fraction form
    6,880.90/10,317.69 = 2,980.75/x
  3. Step 3: Cross multiply
    6,880.90x = 10,317.69 × 2,980.75
  4. Step 4: Simplify right side
    6,880.90x = 30,754,454.47
  5. Step 5: Solve for x
    x = 30,754,454.47/6,880.90
  6. Step 6: Final answer
    x = 4,469.54

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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.