Home / 6,429.28-8,869.44-3,775.84

Finding the Fourth Proportional to 6,429.28, 8,869.44 and 3,775.84

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Solution

The fourth proportional to 6,429.28, 8,869.44 and 3,775.84 is: 5,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.28 : 8,869.44 = 3,775.84 : x
  2. Step 2: Convert to fraction form
    6,429.28/8,869.44 = 3,775.84/x
  3. Step 3: Cross multiply
    6,429.28x = 8,869.44 × 3,775.84
  4. Step 4: Simplify right side
    6,429.28x = 33,489,586.33
  5. Step 5: Solve for x
    x = 33,489,586.33/6,429.28
  6. Step 6: Final answer
    x = 5,208.92

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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.