Home / 6,224.81-8,583.64-3,986.78

Finding the Fourth Proportional to 6,224.81, 8,583.64 and 3,986.78

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Solution

The fourth proportional to 6,224.81, 8,583.64 and 3,986.78 is: 5,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,224.81 : 8,583.64 = 3,986.78 : x
  2. Step 2: Convert to fraction form
    6,224.81/8,583.64 = 3,986.78/x
  3. Step 3: Cross multiply
    6,224.81x = 8,583.64 × 3,986.78
  4. Step 4: Simplify right side
    6,224.81x = 34,221,031.39
  5. Step 5: Solve for x
    x = 34,221,031.39/6,224.81
  6. Step 6: Final answer
    x = 5,497.53

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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.