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Finding the Fourth Proportional to 3,074.60, 4,602.78 and 1,975.64

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Solution

The fourth proportional to 3,074.60, 4,602.78 and 1,975.64 is: 2,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.60 : 4,602.78 = 1,975.64 : x
  2. Step 2: Convert to fraction form
    3,074.60/4,602.78 = 1,975.64/x
  3. Step 3: Cross multiply
    3,074.60x = 4,602.78 × 1,975.64
  4. Step 4: Simplify right side
    3,074.60x = 9,093,436.28
  5. Step 5: Solve for x
    x = 9,093,436.28/3,074.60
  6. Step 6: Final answer
    x = 2,957.60

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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.