Home / 3,521.35-5,278.78-1,673.34

Finding the Fourth Proportional to 3,521.35, 5,278.78 and 1,673.34

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Solution

The fourth proportional to 3,521.35, 5,278.78 and 1,673.34 is: 2,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.35 : 5,278.78 = 1,673.34 : x
  2. Step 2: Convert to fraction form
    3,521.35/5,278.78 = 1,673.34/x
  3. Step 3: Cross multiply
    3,521.35x = 5,278.78 × 1,673.34
  4. Step 4: Simplify right side
    3,521.35x = 8,833,193.73
  5. Step 5: Solve for x
    x = 8,833,193.73/3,521.35
  6. Step 6: Final answer
    x = 2,508.47

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1.5x scale

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.