Home / 3,650.50-5,455.74-2,665.39

Finding the Fourth Proportional to 3,650.50, 5,455.74 and 2,665.39

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Solution

The fourth proportional to 3,650.50, 5,455.74 and 2,665.39 is: 3,983.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.50 : 5,455.74 = 2,665.39 : x
  2. Step 2: Convert to fraction form
    3,650.50/5,455.74 = 2,665.39/x
  3. Step 3: Cross multiply
    3,650.50x = 5,455.74 × 2,665.39
  4. Step 4: Simplify right side
    3,650.50x = 14,541,674.84
  5. Step 5: Solve for x
    x = 14,541,674.84/3,650.50
  6. Step 6: Final answer
    x = 3,983.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.