Home / 4,212.95-6,320.17-1,438.97

Finding the Fourth Proportional to 4,212.95, 6,320.17 and 1,438.97

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Solution

The fourth proportional to 4,212.95, 6,320.17 and 1,438.97 is: 2,158.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.95 : 6,320.17 = 1,438.97 : x
  2. Step 2: Convert to fraction form
    4,212.95/6,320.17 = 1,438.97/x
  3. Step 3: Cross multiply
    4,212.95x = 6,320.17 × 1,438.97
  4. Step 4: Simplify right side
    4,212.95x = 9,094,554.42
  5. Step 5: Solve for x
    x = 9,094,554.42/4,212.95
  6. Step 6: Final answer
    x = 2,158.71

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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.