Home / 7,197.12-10,802.88-3,742.08

Finding the Fourth Proportional to 7,197.12, 10,802.88 and 3,742.08

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Solution

The fourth proportional to 7,197.12, 10,802.88 and 3,742.08 is: 5,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,197.12 : 10,802.88 = 3,742.08 : x
  2. Step 2: Convert to fraction form
    7,197.12/10,802.88 = 3,742.08/x
  3. Step 3: Cross multiply
    7,197.12x = 10,802.88 × 3,742.08
  4. Step 4: Simplify right side
    7,197.12x = 40,425,241.19
  5. Step 5: Solve for x
    x = 40,425,241.19/7,197.12
  6. Step 6: Final answer
    x = 5,616.86

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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.