Home / 6,429.59-8,872.89-3,777.04

Finding the Fourth Proportional to 6,429.59, 8,872.89 and 3,777.04

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Solution

The fourth proportional to 6,429.59, 8,872.89 and 3,777.04 is: 5,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.59 : 8,872.89 = 3,777.04 : x
  2. Step 2: Convert to fraction form
    6,429.59/8,872.89 = 3,777.04/x
  3. Step 3: Cross multiply
    6,429.59x = 8,872.89 × 3,777.04
  4. Step 4: Simplify right side
    6,429.59x = 33,513,197.20
  5. Step 5: Solve for x
    x = 33,513,197.20/6,429.59
  6. Step 6: Final answer
    x = 5,212.34

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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.