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Finding the Fourth Proportional to 3,602.50, 5,405.19 and 1,294.18

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Solution

The fourth proportional to 3,602.50, 5,405.19 and 1,294.18 is: 1,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.50 : 5,405.19 = 1,294.18 : x
  2. Step 2: Convert to fraction form
    3,602.50/5,405.19 = 1,294.18/x
  3. Step 3: Cross multiply
    3,602.50x = 5,405.19 × 1,294.18
  4. Step 4: Simplify right side
    3,602.50x = 6,995,270.43
  5. Step 5: Solve for x
    x = 6,995,270.43/3,602.50
  6. Step 6: Final answer
    x = 1,941.78

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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.