Home / 3,429.12-5,135.48-3,256.90

Finding the Fourth Proportional to 3,429.12, 5,135.48 and 3,256.90

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Solution

The fourth proportional to 3,429.12, 5,135.48 and 3,256.90 is: 4,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.12 : 5,135.48 = 3,256.90 : x
  2. Step 2: Convert to fraction form
    3,429.12/5,135.48 = 3,256.90/x
  3. Step 3: Cross multiply
    3,429.12x = 5,135.48 × 3,256.90
  4. Step 4: Simplify right side
    3,429.12x = 16,725,744.81
  5. Step 5: Solve for x
    x = 16,725,744.81/3,429.12
  6. Step 6: Final answer
    x = 4,877.56

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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.