Home / 7,143.73-10,713.52-2,760.19

Finding the Fourth Proportional to 7,143.73, 10,713.52 and 2,760.19

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Solution

The fourth proportional to 7,143.73, 10,713.52 and 2,760.19 is: 4,139.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.73 : 10,713.52 = 2,760.19 : x
  2. Step 2: Convert to fraction form
    7,143.73/10,713.52 = 2,760.19/x
  3. Step 3: Cross multiply
    7,143.73x = 10,713.52 × 2,760.19
  4. Step 4: Simplify right side
    7,143.73x = 29,571,350.77
  5. Step 5: Solve for x
    x = 29,571,350.77/7,143.73
  6. Step 6: Final answer
    x = 4,139.48

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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.