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Finding the Fourth Proportional to 4,773.84, 7,161.72 and 1,486.80

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Solution

The fourth proportional to 4,773.84, 7,161.72 and 1,486.80 is: 2,230.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,773.84 : 7,161.72 = 1,486.80 : x
  2. Step 2: Convert to fraction form
    4,773.84/7,161.72 = 1,486.80/x
  3. Step 3: Cross multiply
    4,773.84x = 7,161.72 × 1,486.80
  4. Step 4: Simplify right side
    4,773.84x = 10,648,045.30
  5. Step 5: Solve for x
    x = 10,648,045.30/4,773.84
  6. Step 6: Final answer
    x = 2,230.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.