Home / 4,509.24-6,765.12-1,389.36

Finding the Fourth Proportional to 4,509.24, 6,765.12 and 1,389.36

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Solution

The fourth proportional to 4,509.24, 6,765.12 and 1,389.36 is: 2,084.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.24 : 6,765.12 = 1,389.36 : x
  2. Step 2: Convert to fraction form
    4,509.24/6,765.12 = 1,389.36/x
  3. Step 3: Cross multiply
    4,509.24x = 6,765.12 × 1,389.36
  4. Step 4: Simplify right side
    4,509.24x = 9,399,187.12
  5. Step 5: Solve for x
    x = 9,399,187.12/4,509.24
  6. Step 6: Final answer
    x = 2,084.43

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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.