Home / 6,289.93-8,681.66-3,638.85

Finding the Fourth Proportional to 6,289.93, 8,681.66 and 3,638.85

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Solution

The fourth proportional to 6,289.93, 8,681.66 and 3,638.85 is: 5,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.93 : 8,681.66 = 3,638.85 : x
  2. Step 2: Convert to fraction form
    6,289.93/8,681.66 = 3,638.85/x
  3. Step 3: Cross multiply
    6,289.93x = 8,681.66 × 3,638.85
  4. Step 4: Simplify right side
    6,289.93x = 31,591,258.49
  5. Step 5: Solve for x
    x = 31,591,258.49/6,289.93
  6. Step 6: Final answer
    x = 5,022.51

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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.