Home / 3,812.16-5,718.56-1,621.44

Finding the Fourth Proportional to 3,812.16, 5,718.56 and 1,621.44

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Solution

The fourth proportional to 3,812.16, 5,718.56 and 1,621.44 is: 2,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.16 : 5,718.56 = 1,621.44 : x
  2. Step 2: Convert to fraction form
    3,812.16/5,718.56 = 1,621.44/x
  3. Step 3: Cross multiply
    3,812.16x = 5,718.56 × 1,621.44
  4. Step 4: Simplify right side
    3,812.16x = 9,272,301.93
  5. Step 5: Solve for x
    x = 9,272,301.93/3,812.16
  6. Step 6: Final answer
    x = 2,432.30

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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.