Home / 3,555.64-4,906.14-2,157.88

Finding the Fourth Proportional to 3,555.64, 4,906.14 and 2,157.88

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Solution

The fourth proportional to 3,555.64, 4,906.14 and 2,157.88 is: 2,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.64 : 4,906.14 = 2,157.88 : x
  2. Step 2: Convert to fraction form
    3,555.64/4,906.14 = 2,157.88/x
  3. Step 3: Cross multiply
    3,555.64x = 4,906.14 × 2,157.88
  4. Step 4: Simplify right side
    3,555.64x = 10,586,861.38
  5. Step 5: Solve for x
    x = 10,586,861.38/3,555.64
  6. Step 6: Final answer
    x = 2,977.48

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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.