Home / 5,160.60-7,742.10-2,199.21

Finding the Fourth Proportional to 5,160.60, 7,742.10 and 2,199.21

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Solution

The fourth proportional to 5,160.60, 7,742.10 and 2,199.21 is: 3,299.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.60 : 7,742.10 = 2,199.21 : x
  2. Step 2: Convert to fraction form
    5,160.60/7,742.10 = 2,199.21/x
  3. Step 3: Cross multiply
    5,160.60x = 7,742.10 × 2,199.21
  4. Step 4: Simplify right side
    5,160.60x = 17,026,503.74
  5. Step 5: Solve for x
    x = 17,026,503.74/5,160.60
  6. Step 6: Final answer
    x = 3,299.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.