Home / 3,390.95-5,085.34-1,747.28

Finding the Fourth Proportional to 3,390.95, 5,085.34 and 1,747.28

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Solution

The fourth proportional to 3,390.95, 5,085.34 and 1,747.28 is: 2,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.95 : 5,085.34 = 1,747.28 : x
  2. Step 2: Convert to fraction form
    3,390.95/5,085.34 = 1,747.28/x
  3. Step 3: Cross multiply
    3,390.95x = 5,085.34 × 1,747.28
  4. Step 4: Simplify right side
    3,390.95x = 8,885,512.88
  5. Step 5: Solve for x
    x = 8,885,512.88/3,390.95
  6. Step 6: Final answer
    x = 2,620.36

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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.