Home / 2,816.48-4,225.32-868.62

Finding the Fourth Proportional to 2,816.48, 4,225.32 and 868.62

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Solution

The fourth proportional to 2,816.48, 4,225.32 and 868.62 is: 1,303.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.48 : 4,225.32 = 868.62 : x
  2. Step 2: Convert to fraction form
    2,816.48/4,225.32 = 868.62/x
  3. Step 3: Cross multiply
    2,816.48x = 4,225.32 × 868.62
  4. Step 4: Simplify right side
    2,816.48x = 3,670,197.46
  5. Step 5: Solve for x
    x = 3,670,197.46/2,816.48
  6. Step 6: Final answer
    x = 1,303.12

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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.