Home / 6,429.74-8,869.35-3,776.66

Finding the Fourth Proportional to 6,429.74, 8,869.35 and 3,776.66

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Solution

The fourth proportional to 6,429.74, 8,869.35 and 3,776.66 is: 5,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.74 : 8,869.35 = 3,776.66 : x
  2. Step 2: Convert to fraction form
    6,429.74/8,869.35 = 3,776.66/x
  3. Step 3: Cross multiply
    6,429.74x = 8,869.35 × 3,776.66
  4. Step 4: Simplify right side
    6,429.74x = 33,496,519.37
  5. Step 5: Solve for x
    x = 33,496,519.37/6,429.74
  6. Step 6: Final answer
    x = 5,209.62

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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.