Home / 6,429.09-8,872.05-3,634.59

Finding the Fourth Proportional to 6,429.09, 8,872.05 and 3,634.59

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Solution

The fourth proportional to 6,429.09, 8,872.05 and 3,634.59 is: 5,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.09 : 8,872.05 = 3,634.59 : x
  2. Step 2: Convert to fraction form
    6,429.09/8,872.05 = 3,634.59/x
  3. Step 3: Cross multiply
    6,429.09x = 8,872.05 × 3,634.59
  4. Step 4: Simplify right side
    6,429.09x = 32,246,264.21
  5. Step 5: Solve for x
    x = 32,246,264.21/6,429.09
  6. Step 6: Final answer
    x = 5,015.68

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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.