Home / 6,285.21-8,673.62-3,928.70

Finding the Fourth Proportional to 6,285.21, 8,673.62 and 3,928.70

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Solution

The fourth proportional to 6,285.21, 8,673.62 and 3,928.70 is: 5,421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,285.21 : 8,673.62 = 3,928.70 : x
  2. Step 2: Convert to fraction form
    6,285.21/8,673.62 = 3,928.70/x
  3. Step 3: Cross multiply
    6,285.21x = 8,673.62 × 3,928.70
  4. Step 4: Simplify right side
    6,285.21x = 34,076,050.89
  5. Step 5: Solve for x
    x = 34,076,050.89/6,285.21
  6. Step 6: Final answer
    x = 5,421.62

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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.