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Finding the Fourth Proportional to 3,596.43, 5,395.94 and 1,256.78

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Solution

The fourth proportional to 3,596.43, 5,395.94 and 1,256.78 is: 1,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.43 : 5,395.94 = 1,256.78 : x
  2. Step 2: Convert to fraction form
    3,596.43/5,395.94 = 1,256.78/x
  3. Step 3: Cross multiply
    3,596.43x = 5,395.94 × 1,256.78
  4. Step 4: Simplify right side
    3,596.43x = 6,781,506.33
  5. Step 5: Solve for x
    x = 6,781,506.33/3,596.43
  6. Step 6: Final answer
    x = 1,885.62

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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.