Home / 7,305.45-10,953.09-3,144.21

Finding the Fourth Proportional to 7,305.45, 10,953.09 and 3,144.21

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Solution

The fourth proportional to 7,305.45, 10,953.09 and 3,144.21 is: 4,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.45 : 10,953.09 = 3,144.21 : x
  2. Step 2: Convert to fraction form
    7,305.45/10,953.09 = 3,144.21/x
  3. Step 3: Cross multiply
    7,305.45x = 10,953.09 × 3,144.21
  4. Step 4: Simplify right side
    7,305.45x = 34,438,815.11
  5. Step 5: Solve for x
    x = 34,438,815.11/7,305.45
  6. Step 6: Final answer
    x = 4,714.13

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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.