Home / 3,209.40-4,423.32-2,646.54

Finding the Fourth Proportional to 3,209.40, 4,423.32 and 2,646.54

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Solution

The fourth proportional to 3,209.40, 4,423.32 and 2,646.54 is: 3,647.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.40 : 4,423.32 = 2,646.54 : x
  2. Step 2: Convert to fraction form
    3,209.40/4,423.32 = 2,646.54/x
  3. Step 3: Cross multiply
    3,209.40x = 4,423.32 × 2,646.54
  4. Step 4: Simplify right side
    3,209.40x = 11,706,493.31
  5. Step 5: Solve for x
    x = 11,706,493.31/3,209.40
  6. Step 6: Final answer
    x = 3,647.56

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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.