Home / 7,149.75-10,725.38-1,955.63

Finding the Fourth Proportional to 7,149.75, 10,725.38 and 1,955.63

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Solution

The fourth proportional to 7,149.75, 10,725.38 and 1,955.63 is: 2,933.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.75 : 10,725.38 = 1,955.63 : x
  2. Step 2: Convert to fraction form
    7,149.75/10,725.38 = 1,955.63/x
  3. Step 3: Cross multiply
    7,149.75x = 10,725.38 × 1,955.63
  4. Step 4: Simplify right side
    7,149.75x = 20,974,811.48
  5. Step 5: Solve for x
    x = 20,974,811.48/7,149.75
  6. Step 6: Final answer
    x = 2,933.64

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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.