Home / 3,529.46-5,290.77-1,680.08

Finding the Fourth Proportional to 3,529.46, 5,290.77 and 1,680.08

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Solution

The fourth proportional to 3,529.46, 5,290.77 and 1,680.08 is: 2,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.46 : 5,290.77 = 1,680.08 : x
  2. Step 2: Convert to fraction form
    3,529.46/5,290.77 = 1,680.08/x
  3. Step 3: Cross multiply
    3,529.46x = 5,290.77 × 1,680.08
  4. Step 4: Simplify right side
    3,529.46x = 8,888,890.41
  5. Step 5: Solve for x
    x = 8,888,890.41/3,529.46
  6. Step 6: Final answer
    x = 2,518.49

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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.