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Finding the Fourth Proportional to 6,276.80, 8,651.94 and 4,948.40

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Solution

The fourth proportional to 6,276.80, 8,651.94 and 4,948.40 is: 6,820.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.80 : 8,651.94 = 4,948.40 : x
  2. Step 2: Convert to fraction form
    6,276.80/8,651.94 = 4,948.40/x
  3. Step 3: Cross multiply
    6,276.80x = 8,651.94 × 4,948.40
  4. Step 4: Simplify right side
    6,276.80x = 42,813,259.90
  5. Step 5: Solve for x
    x = 42,813,259.90/6,276.80
  6. Step 6: Final answer
    x = 6,820.87

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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.