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Finding the Fourth Proportional to 3,173.63, 4,762.60 and 1,121.63

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Solution

The fourth proportional to 3,173.63, 4,762.60 and 1,121.63 is: 1,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.63 : 4,762.60 = 1,121.63 : x
  2. Step 2: Convert to fraction form
    3,173.63/4,762.60 = 1,121.63/x
  3. Step 3: Cross multiply
    3,173.63x = 4,762.60 × 1,121.63
  4. Step 4: Simplify right side
    3,173.63x = 5,341,848.42
  5. Step 5: Solve for x
    x = 5,341,848.42/3,173.63
  6. Step 6: Final answer
    x = 1,683.20

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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.