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Finding the Fourth Proportional to 3,576.57, 5,362.62 and 1,384.80

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Solution

The fourth proportional to 3,576.57, 5,362.62 and 1,384.80 is: 2,076.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.57 : 5,362.62 = 1,384.80 : x
  2. Step 2: Convert to fraction form
    3,576.57/5,362.62 = 1,384.80/x
  3. Step 3: Cross multiply
    3,576.57x = 5,362.62 × 1,384.80
  4. Step 4: Simplify right side
    3,576.57x = 7,426,156.18
  5. Step 5: Solve for x
    x = 7,426,156.18/3,576.57
  6. Step 6: Final answer
    x = 2,076.33

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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.