Home / 6,415.20-9,621.99-2,032.70

Finding the Fourth Proportional to 6,415.20, 9,621.99 and 2,032.70

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Solution

The fourth proportional to 6,415.20, 9,621.99 and 2,032.70 is: 3,048.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.20 : 9,621.99 = 2,032.70 : x
  2. Step 2: Convert to fraction form
    6,415.20/9,621.99 = 2,032.70/x
  3. Step 3: Cross multiply
    6,415.20x = 9,621.99 × 2,032.70
  4. Step 4: Simplify right side
    6,415.20x = 19,558,570.96
  5. Step 5: Solve for x
    x = 19,558,570.96/6,415.20
  6. Step 6: Final answer
    x = 3,048.79

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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.