Home / 3,150.12-4,725.18-1,418.76

Finding the Fourth Proportional to 3,150.12, 4,725.18 and 1,418.76

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Solution

The fourth proportional to 3,150.12, 4,725.18 and 1,418.76 is: 2,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.12 : 4,725.18 = 1,418.76 : x
  2. Step 2: Convert to fraction form
    3,150.12/4,725.18 = 1,418.76/x
  3. Step 3: Cross multiply
    3,150.12x = 4,725.18 × 1,418.76
  4. Step 4: Simplify right side
    3,150.12x = 6,703,896.38
  5. Step 5: Solve for x
    x = 6,703,896.38/3,150.12
  6. Step 6: Final answer
    x = 2,128.14

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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.