Home / 3,630.10-5,443.26-1,680.64

Finding the Fourth Proportional to 3,630.10, 5,443.26 and 1,680.64

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Solution

The fourth proportional to 3,630.10, 5,443.26 and 1,680.64 is: 2,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.10 : 5,443.26 = 1,680.64 : x
  2. Step 2: Convert to fraction form
    3,630.10/5,443.26 = 1,680.64/x
  3. Step 3: Cross multiply
    3,630.10x = 5,443.26 × 1,680.64
  4. Step 4: Simplify right side
    3,630.10x = 9,148,160.49
  5. Step 5: Solve for x
    x = 9,148,160.49/3,630.10
  6. Step 6: Final answer
    x = 2,520.08

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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.