Home / 6,812.31-10,214.78-2,130.29

Finding the Fourth Proportional to 6,812.31, 10,214.78 and 2,130.29

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Solution

The fourth proportional to 6,812.31, 10,214.78 and 2,130.29 is: 3,194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.31 : 10,214.78 = 2,130.29 : x
  2. Step 2: Convert to fraction form
    6,812.31/10,214.78 = 2,130.29/x
  3. Step 3: Cross multiply
    6,812.31x = 10,214.78 × 2,130.29
  4. Step 4: Simplify right side
    6,812.31x = 21,760,381.96
  5. Step 5: Solve for x
    x = 21,760,381.96/6,812.31
  6. Step 6: Final answer
    x = 3,194.27

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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.