Home / 3,204.79-4,421.37-1,945.40

Finding the Fourth Proportional to 3,204.79, 4,421.37 and 1,945.40

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Solution

The fourth proportional to 3,204.79, 4,421.37 and 1,945.40 is: 2,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,204.79 : 4,421.37 = 1,945.40 : x
  2. Step 2: Convert to fraction form
    3,204.79/4,421.37 = 1,945.40/x
  3. Step 3: Cross multiply
    3,204.79x = 4,421.37 × 1,945.40
  4. Step 4: Simplify right side
    3,204.79x = 8,601,333.20
  5. Step 5: Solve for x
    x = 8,601,333.20/3,204.79
  6. Step 6: Final answer
    x = 2,683.90

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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.