Home / 4,509.38-6,764.82-1,389.39

Finding the Fourth Proportional to 4,509.38, 6,764.82 and 1,389.39

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Solution

The fourth proportional to 4,509.38, 6,764.82 and 1,389.39 is: 2,084.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.38 : 6,764.82 = 1,389.39 : x
  2. Step 2: Convert to fraction form
    4,509.38/6,764.82 = 1,389.39/x
  3. Step 3: Cross multiply
    4,509.38x = 6,764.82 × 1,389.39
  4. Step 4: Simplify right side
    4,509.38x = 9,398,966.31
  5. Step 5: Solve for x
    x = 9,398,966.31/4,509.38
  6. Step 6: Final answer
    x = 2,084.31

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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.