Home / 5,140.60-7,097.08-3,375.30

Finding the Fourth Proportional to 5,140.60, 7,097.08 and 3,375.30

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Solution

The fourth proportional to 5,140.60, 7,097.08 and 3,375.30 is: 4,659.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.60 : 7,097.08 = 3,375.30 : x
  2. Step 2: Convert to fraction form
    5,140.60/7,097.08 = 3,375.30/x
  3. Step 3: Cross multiply
    5,140.60x = 7,097.08 × 3,375.30
  4. Step 4: Simplify right side
    5,140.60x = 23,954,774.12
  5. Step 5: Solve for x
    x = 23,954,774.12/5,140.60
  6. Step 6: Final answer
    x = 4,659.92

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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.