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Finding the Fourth Proportional to 4,878.72, 6,733.44 and 3,305.76

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Solution

The fourth proportional to 4,878.72, 6,733.44 and 3,305.76 is: 4,562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.72 : 6,733.44 = 3,305.76 : x
  2. Step 2: Convert to fraction form
    4,878.72/6,733.44 = 3,305.76/x
  3. Step 3: Cross multiply
    4,878.72x = 6,733.44 × 3,305.76
  4. Step 4: Simplify right side
    4,878.72x = 22,259,136.61
  5. Step 5: Solve for x
    x = 22,259,136.61/4,878.72
  6. Step 6: Final answer
    x = 4,562.50

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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.