Home / 7,302.12-10,953.78-3,142.24

Finding the Fourth Proportional to 7,302.12, 10,953.78 and 3,142.24

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Solution

The fourth proportional to 7,302.12, 10,953.78 and 3,142.24 is: 4,713.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,302.12 : 10,953.78 = 3,142.24 : x
  2. Step 2: Convert to fraction form
    7,302.12/10,953.78 = 3,142.24/x
  3. Step 3: Cross multiply
    7,302.12x = 10,953.78 × 3,142.24
  4. Step 4: Simplify right side
    7,302.12x = 34,419,405.67
  5. Step 5: Solve for x
    x = 34,419,405.67/7,302.12
  6. Step 6: Final answer
    x = 4,713.62

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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.