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Finding the Fourth Proportional to 3,604.69, 5,407.04 and 1,960.80

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Solution

The fourth proportional to 3,604.69, 5,407.04 and 1,960.80 is: 2,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.69 : 5,407.04 = 1,960.80 : x
  2. Step 2: Convert to fraction form
    3,604.69/5,407.04 = 1,960.80/x
  3. Step 3: Cross multiply
    3,604.69x = 5,407.04 × 1,960.80
  4. Step 4: Simplify right side
    3,604.69x = 10,602,124.03
  5. Step 5: Solve for x
    x = 10,602,124.03/3,604.69
  6. Step 6: Final answer
    x = 2,941.20

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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.