Home / 3,390.45-5,085.16-1,169.63

Finding the Fourth Proportional to 3,390.45, 5,085.16 and 1,169.63

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Solution

The fourth proportional to 3,390.45, 5,085.16 and 1,169.63 is: 1,754.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.45 : 5,085.16 = 1,169.63 : x
  2. Step 2: Convert to fraction form
    3,390.45/5,085.16 = 1,169.63/x
  3. Step 3: Cross multiply
    3,390.45x = 5,085.16 × 1,169.63
  4. Step 4: Simplify right side
    3,390.45x = 5,947,724.42
  5. Step 5: Solve for x
    x = 5,947,724.42/3,390.45
  6. Step 6: Final answer
    x = 1,754.26

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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.