Home / 6,812.75-10,220.55-2,132.57

Finding the Fourth Proportional to 6,812.75, 10,220.55 and 2,132.57

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Solution

The fourth proportional to 6,812.75, 10,220.55 and 2,132.57 is: 3,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.75 : 10,220.55 = 2,132.57 : x
  2. Step 2: Convert to fraction form
    6,812.75/10,220.55 = 2,132.57/x
  3. Step 3: Cross multiply
    6,812.75x = 10,220.55 × 2,132.57
  4. Step 4: Simplify right side
    6,812.75x = 21,796,038.31
  5. Step 5: Solve for x
    x = 21,796,038.31/6,812.75
  6. Step 6: Final answer
    x = 3,199.30

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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.