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Finding the Fourth Proportional to 6,276.90, 8,662.12 and 3,482.40

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Solution

The fourth proportional to 6,276.90, 8,662.12 and 3,482.40 is: 4,805.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.90 : 8,662.12 = 3,482.40 : x
  2. Step 2: Convert to fraction form
    6,276.90/8,662.12 = 3,482.40/x
  3. Step 3: Cross multiply
    6,276.90x = 8,662.12 × 3,482.40
  4. Step 4: Simplify right side
    6,276.90x = 30,164,966.69
  5. Step 5: Solve for x
    x = 30,164,966.69/6,276.90
  6. Step 6: Final answer
    x = 4,805.71

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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.