Home / 3,730.05-5,147.33-2,157.93

Finding the Fourth Proportional to 3,730.05, 5,147.33 and 2,157.93

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Solution

The fourth proportional to 3,730.05, 5,147.33 and 2,157.93 is: 2,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.05 : 5,147.33 = 2,157.93 : x
  2. Step 2: Convert to fraction form
    3,730.05/5,147.33 = 2,157.93/x
  3. Step 3: Cross multiply
    3,730.05x = 5,147.33 × 2,157.93
  4. Step 4: Simplify right side
    3,730.05x = 11,107,567.04
  5. Step 5: Solve for x
    x = 11,107,567.04/3,730.05
  6. Step 6: Final answer
    x = 2,977.86

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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.