Home / 4,213.38-6,315.64-1,439.07

Finding the Fourth Proportional to 4,213.38, 6,315.64 and 1,439.07

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Solution

The fourth proportional to 4,213.38, 6,315.64 and 1,439.07 is: 2,157.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.38 : 6,315.64 = 1,439.07 : x
  2. Step 2: Convert to fraction form
    4,213.38/6,315.64 = 1,439.07/x
  3. Step 3: Cross multiply
    4,213.38x = 6,315.64 × 1,439.07
  4. Step 4: Simplify right side
    4,213.38x = 9,088,648.05
  5. Step 5: Solve for x
    x = 9,088,648.05/4,213.38
  6. Step 6: Final answer
    x = 2,157.09

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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.