Home / 4,270.91-6,406.72-1,309.26

Finding the Fourth Proportional to 4,270.91, 6,406.72 and 1,309.26

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Solution

The fourth proportional to 4,270.91, 6,406.72 and 1,309.26 is: 1,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.91 : 6,406.72 = 1,309.26 : x
  2. Step 2: Convert to fraction form
    4,270.91/6,406.72 = 1,309.26/x
  3. Step 3: Cross multiply
    4,270.91x = 6,406.72 × 1,309.26
  4. Step 4: Simplify right side
    4,270.91x = 8,388,058.95
  5. Step 5: Solve for x
    x = 8,388,058.95/4,270.91
  6. Step 6: Final answer
    x = 1,964.00

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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.