Home / 4,299.16-6,435.78-3,145.72

Finding the Fourth Proportional to 4,299.16, 6,435.78 and 3,145.72

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Solution

The fourth proportional to 4,299.16, 6,435.78 and 3,145.72 is: 4,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,299.16 : 6,435.78 = 3,145.72 : x
  2. Step 2: Convert to fraction form
    4,299.16/6,435.78 = 3,145.72/x
  3. Step 3: Cross multiply
    4,299.16x = 6,435.78 × 3,145.72
  4. Step 4: Simplify right side
    4,299.16x = 20,245,161.86
  5. Step 5: Solve for x
    x = 20,245,161.86/4,299.16
  6. Step 6: Final answer
    x = 4,709.10

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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.