Home / 7,173.28-10,760.48-2,790.40

Finding the Fourth Proportional to 7,173.28, 10,760.48 and 2,790.40

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Solution

The fourth proportional to 7,173.28, 10,760.48 and 2,790.40 is: 4,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.28 : 10,760.48 = 2,790.40 : x
  2. Step 2: Convert to fraction form
    7,173.28/10,760.48 = 2,790.40/x
  3. Step 3: Cross multiply
    7,173.28x = 10,760.48 × 2,790.40
  4. Step 4: Simplify right side
    7,173.28x = 30,026,043.39
  5. Step 5: Solve for x
    x = 30,026,043.39/7,173.28
  6. Step 6: Final answer
    x = 4,185.82

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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.