Home / 10,629.68-15,943.28-2,839.10

Finding the Fourth Proportional to 10,629.68, 15,943.28 and 2,839.10

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Solution

The fourth proportional to 10,629.68, 15,943.28 and 2,839.10 is: 4,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.68 : 15,943.28 = 2,839.10 : x
  2. Step 2: Convert to fraction form
    10,629.68/15,943.28 = 2,839.10/x
  3. Step 3: Cross multiply
    10,629.68x = 15,943.28 × 2,839.10
  4. Step 4: Simplify right side
    10,629.68x = 45,264,566.25
  5. Step 5: Solve for x
    x = 45,264,566.25/10,629.68
  6. Step 6: Final answer
    x = 4,258.32

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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.