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Finding the Fourth Proportional to 3,602.61, 5,407.16 and 1,960.34

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Solution

The fourth proportional to 3,602.61, 5,407.16 and 1,960.34 is: 2,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.61 : 5,407.16 = 1,960.34 : x
  2. Step 2: Convert to fraction form
    3,602.61/5,407.16 = 1,960.34/x
  3. Step 3: Cross multiply
    3,602.61x = 5,407.16 × 1,960.34
  4. Step 4: Simplify right side
    3,602.61x = 10,599,835.20
  5. Step 5: Solve for x
    x = 10,599,835.20/3,602.61
  6. Step 6: Final answer
    x = 2,942.27

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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.