Home / 3,750.16-5,175.95-2,157.88

Finding the Fourth Proportional to 3,750.16, 5,175.95 and 2,157.88

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Solution

The fourth proportional to 3,750.16, 5,175.95 and 2,157.88 is: 2,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.16 : 5,175.95 = 2,157.88 : x
  2. Step 2: Convert to fraction form
    3,750.16/5,175.95 = 2,157.88/x
  3. Step 3: Cross multiply
    3,750.16x = 5,175.95 × 2,157.88
  4. Step 4: Simplify right side
    3,750.16x = 11,169,078.99
  5. Step 5: Solve for x
    x = 11,169,078.99/3,750.16
  6. Step 6: Final answer
    x = 2,978.29

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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.