Home / 5,412.66-8,119.26-5,320.62

Finding the Fourth Proportional to 5,412.66, 8,119.26 and 5,320.62

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Solution

The fourth proportional to 5,412.66, 8,119.26 and 5,320.62 is: 7,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.66 : 8,119.26 = 5,320.62 : x
  2. Step 2: Convert to fraction form
    5,412.66/8,119.26 = 5,320.62/x
  3. Step 3: Cross multiply
    5,412.66x = 8,119.26 × 5,320.62
  4. Step 4: Simplify right side
    5,412.66x = 43,199,497.14
  5. Step 5: Solve for x
    x = 43,199,497.14/5,412.66
  6. Step 6: Final answer
    x = 7,981.20

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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.