Home / 3,529.96-5,291.49-1,680.57

Finding the Fourth Proportional to 3,529.96, 5,291.49 and 1,680.57

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Solution

The fourth proportional to 3,529.96, 5,291.49 and 1,680.57 is: 2,519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.96 : 5,291.49 = 1,680.57 : x
  2. Step 2: Convert to fraction form
    3,529.96/5,291.49 = 1,680.57/x
  3. Step 3: Cross multiply
    3,529.96x = 5,291.49 × 1,680.57
  4. Step 4: Simplify right side
    3,529.96x = 8,892,719.35
  5. Step 5: Solve for x
    x = 8,892,719.35/3,529.96
  6. Step 6: Final answer
    x = 2,519.21

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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.