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Finding the Fourth Proportional to 7,141.46, 10,710.46 and 2,756.12

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Solution

The fourth proportional to 7,141.46, 10,710.46 and 2,756.12 is: 4,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.46 : 10,710.46 = 2,756.12 : x
  2. Step 2: Convert to fraction form
    7,141.46/10,710.46 = 2,756.12/x
  3. Step 3: Cross multiply
    7,141.46x = 10,710.46 × 2,756.12
  4. Step 4: Simplify right side
    7,141.46x = 29,519,313.02
  5. Step 5: Solve for x
    x = 29,519,313.02/7,141.46
  6. Step 6: Final answer
    x = 4,133.51

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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.