Home / 6,823.47-9,415.73-3,840.34

Finding the Fourth Proportional to 6,823.47, 9,415.73 and 3,840.34

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Solution

The fourth proportional to 6,823.47, 9,415.73 and 3,840.34 is: 5,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,823.47 : 9,415.73 = 3,840.34 : x
  2. Step 2: Convert to fraction form
    6,823.47/9,415.73 = 3,840.34/x
  3. Step 3: Cross multiply
    6,823.47x = 9,415.73 × 3,840.34
  4. Step 4: Simplify right side
    6,823.47x = 36,159,604.55
  5. Step 5: Solve for x
    x = 36,159,604.55/6,823.47
  6. Step 6: Final answer
    x = 5,299.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.