Home / 3,751.16-5,176.28-2,157.72

Finding the Fourth Proportional to 3,751.16, 5,176.28 and 2,157.72

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Solution

The fourth proportional to 3,751.16, 5,176.28 and 2,157.72 is: 2,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.16 : 5,176.28 = 2,157.72 : x
  2. Step 2: Convert to fraction form
    3,751.16/5,176.28 = 2,157.72/x
  3. Step 3: Cross multiply
    3,751.16x = 5,176.28 × 2,157.72
  4. Step 4: Simplify right side
    3,751.16x = 11,168,962.88
  5. Step 5: Solve for x
    x = 11,168,962.88/3,751.16
  6. Step 6: Final answer
    x = 2,977.47

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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.