Home / 6,871.12-10,307.43-2,190.03

Finding the Fourth Proportional to 6,871.12, 10,307.43 and 2,190.03

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Solution

The fourth proportional to 6,871.12, 10,307.43 and 2,190.03 is: 3,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.12 : 10,307.43 = 2,190.03 : x
  2. Step 2: Convert to fraction form
    6,871.12/10,307.43 = 2,190.03/x
  3. Step 3: Cross multiply
    6,871.12x = 10,307.43 × 2,190.03
  4. Step 4: Simplify right side
    6,871.12x = 22,573,580.92
  5. Step 5: Solve for x
    x = 22,573,580.92/6,871.12
  6. Step 6: Final answer
    x = 3,285.28

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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.