Home / 2,816.47-4,225.16-868.22

Finding the Fourth Proportional to 2,816.47, 4,225.16 and 868.22

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Solution

The fourth proportional to 2,816.47, 4,225.16 and 868.22 is: 1,302.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.47 : 4,225.16 = 868.22 : x
  2. Step 2: Convert to fraction form
    2,816.47/4,225.16 = 868.22/x
  3. Step 3: Cross multiply
    2,816.47x = 4,225.16 × 868.22
  4. Step 4: Simplify right side
    2,816.47x = 3,668,365.30
  5. Step 5: Solve for x
    x = 3,668,365.30/2,816.47
  6. Step 6: Final answer
    x = 1,302.47

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1.5x scale

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.