Home / 3,665.40-5,063.46-2,956.20

Finding the Fourth Proportional to 3,665.40, 5,063.46 and 2,956.20

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Solution

The fourth proportional to 3,665.40, 5,063.46 and 2,956.20 is: 4,083.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.40 : 5,063.46 = 2,956.20 : x
  2. Step 2: Convert to fraction form
    3,665.40/5,063.46 = 2,956.20/x
  3. Step 3: Cross multiply
    3,665.40x = 5,063.46 × 2,956.20
  4. Step 4: Simplify right side
    3,665.40x = 14,968,600.45
  5. Step 5: Solve for x
    x = 14,968,600.45/3,665.40
  6. Step 6: Final answer
    x = 4,083.76

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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.