Home / 6,429.05-9,644.77-2,919.30

Finding the Fourth Proportional to 6,429.05, 9,644.77 and 2,919.30

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Solution

The fourth proportional to 6,429.05, 9,644.77 and 2,919.30 is: 4,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.05 : 9,644.77 = 2,919.30 : x
  2. Step 2: Convert to fraction form
    6,429.05/9,644.77 = 2,919.30/x
  3. Step 3: Cross multiply
    6,429.05x = 9,644.77 × 2,919.30
  4. Step 4: Simplify right side
    6,429.05x = 28,155,928.84
  5. Step 5: Solve for x
    x = 28,155,928.84/6,429.05
  6. Step 6: Final answer
    x = 4,379.49

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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.