Home / 4,103.80-6,156.60-1,330.60

Finding the Fourth Proportional to 4,103.80, 6,156.60 and 1,330.60

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Solution

The fourth proportional to 4,103.80, 6,156.60 and 1,330.60 is: 1,996.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.80 : 6,156.60 = 1,330.60 : x
  2. Step 2: Convert to fraction form
    4,103.80/6,156.60 = 1,330.60/x
  3. Step 3: Cross multiply
    4,103.80x = 6,156.60 × 1,330.60
  4. Step 4: Simplify right side
    4,103.80x = 8,191,971.96
  5. Step 5: Solve for x
    x = 8,191,971.96/4,103.80
  6. Step 6: Final answer
    x = 1,996.19

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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.