Home / 4,212.38-6,314.15-1,438.07

Finding the Fourth Proportional to 4,212.38, 6,314.15 and 1,438.07

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Solution

The fourth proportional to 4,212.38, 6,314.15 and 1,438.07 is: 2,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.38 : 6,314.15 = 1,438.07 : x
  2. Step 2: Convert to fraction form
    4,212.38/6,314.15 = 1,438.07/x
  3. Step 3: Cross multiply
    4,212.38x = 6,314.15 × 1,438.07
  4. Step 4: Simplify right side
    4,212.38x = 9,080,150.93
  5. Step 5: Solve for x
    x = 9,080,150.93/4,212.38
  6. Step 6: Final answer
    x = 2,155.59

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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.