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Finding the Fourth Proportional to 4,805, 6,627.46 and 3,123.27

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Solution

The fourth proportional to 4,805, 6,627.46 and 3,123.27 is: 4,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805 : 6,627.46 = 3,123.27 : x
  2. Step 2: Convert to fraction form
    4,805/6,627.46 = 3,123.27/x
  3. Step 3: Cross multiply
    4,805x = 6,627.46 × 3,123.27
  4. Step 4: Simplify right side
    4,805x = 20,699,346.99
  5. Step 5: Solve for x
    x = 20,699,346.99/4,805
  6. Step 6: Final answer
    x = 4,307.88

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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.