Home / 7,015.31-10,519.88-2,629.70

Finding the Fourth Proportional to 7,015.31, 10,519.88 and 2,629.70

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Solution

The fourth proportional to 7,015.31, 10,519.88 and 2,629.70 is: 3,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.31 : 10,519.88 = 2,629.70 : x
  2. Step 2: Convert to fraction form
    7,015.31/10,519.88 = 2,629.70/x
  3. Step 3: Cross multiply
    7,015.31x = 10,519.88 × 2,629.70
  4. Step 4: Simplify right side
    7,015.31x = 27,664,062.69
  5. Step 5: Solve for x
    x = 27,664,062.69/7,015.31
  6. Step 6: Final answer
    x = 3,943.39

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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.