Home / 4,212.09-6,319.42-1,438.76

Finding the Fourth Proportional to 4,212.09, 6,319.42 and 1,438.76

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Solution

The fourth proportional to 4,212.09, 6,319.42 and 1,438.76 is: 2,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.09 : 6,319.42 = 1,438.76 : x
  2. Step 2: Convert to fraction form
    4,212.09/6,319.42 = 1,438.76/x
  3. Step 3: Cross multiply
    4,212.09x = 6,319.42 × 1,438.76
  4. Step 4: Simplify right side
    4,212.09x = 9,092,140.92
  5. Step 5: Solve for x
    x = 9,092,140.92/4,212.09
  6. Step 6: Final answer
    x = 2,158.58

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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.