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Finding the Fourth Proportional to 4,986.68, 7,477.56 and 2,907.44

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Solution

The fourth proportional to 4,986.68, 7,477.56 and 2,907.44 is: 4,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.68 : 7,477.56 = 2,907.44 : x
  2. Step 2: Convert to fraction form
    4,986.68/7,477.56 = 2,907.44/x
  3. Step 3: Cross multiply
    4,986.68x = 7,477.56 × 2,907.44
  4. Step 4: Simplify right side
    4,986.68x = 21,740,557.05
  5. Step 5: Solve for x
    x = 21,740,557.05/4,986.68
  6. Step 6: Final answer
    x = 4,359.73

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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.