Home / 3,860.37-5,325.12-2,665.17

Finding the Fourth Proportional to 3,860.37, 5,325.12 and 2,665.17

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Solution

The fourth proportional to 3,860.37, 5,325.12 and 2,665.17 is: 3,676.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.37 : 5,325.12 = 2,665.17 : x
  2. Step 2: Convert to fraction form
    3,860.37/5,325.12 = 2,665.17/x
  3. Step 3: Cross multiply
    3,860.37x = 5,325.12 × 2,665.17
  4. Step 4: Simplify right side
    3,860.37x = 14,192,350.07
  5. Step 5: Solve for x
    x = 14,192,350.07/3,860.37
  6. Step 6: Final answer
    x = 3,676.42

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.