Home / 6,429.30-9,631.80-5,991.90

Finding the Fourth Proportional to 6,429.30, 9,631.80 and 5,991.90

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Solution

The fourth proportional to 6,429.30, 9,631.80 and 5,991.90 is: 8,976.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.30 : 9,631.80 = 5,991.90 : x
  2. Step 2: Convert to fraction form
    6,429.30/9,631.80 = 5,991.90/x
  3. Step 3: Cross multiply
    6,429.30x = 9,631.80 × 5,991.90
  4. Step 4: Simplify right side
    6,429.30x = 57,712,782.42
  5. Step 5: Solve for x
    x = 57,712,782.42/6,429.30
  6. Step 6: Final answer
    x = 8,976.53

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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.