Home / 3,730.93-5,147.45-2,157.91

Finding the Fourth Proportional to 3,730.93, 5,147.45 and 2,157.91

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Solution

The fourth proportional to 3,730.93, 5,147.45 and 2,157.91 is: 2,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.93 : 5,147.45 = 2,157.91 : x
  2. Step 2: Convert to fraction form
    3,730.93/5,147.45 = 2,157.91/x
  3. Step 3: Cross multiply
    3,730.93x = 5,147.45 × 2,157.91
  4. Step 4: Simplify right side
    3,730.93x = 11,107,718.26
  5. Step 5: Solve for x
    x = 11,107,718.26/3,730.93
  6. Step 6: Final answer
    x = 2,977.20

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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.