Home / 4,157.70-5,736.15-2,666.42

Finding the Fourth Proportional to 4,157.70, 5,736.15 and 2,666.42

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Solution

The fourth proportional to 4,157.70, 5,736.15 and 2,666.42 is: 3,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,157.70 : 5,736.15 = 2,666.42 : x
  2. Step 2: Convert to fraction form
    4,157.70/5,736.15 = 2,666.42/x
  3. Step 3: Cross multiply
    4,157.70x = 5,736.15 × 2,666.42
  4. Step 4: Simplify right side
    4,157.70x = 15,294,977.91
  5. Step 5: Solve for x
    x = 15,294,977.91/4,157.70
  6. Step 6: Final answer
    x = 3,678.71

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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.