Home / 4,143.72-6,215.56-1,222.05

Finding the Fourth Proportional to 4,143.72, 6,215.56 and 1,222.05

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Solution

The fourth proportional to 4,143.72, 6,215.56 and 1,222.05 is: 1,833.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.72 : 6,215.56 = 1,222.05 : x
  2. Step 2: Convert to fraction form
    4,143.72/6,215.56 = 1,222.05/x
  3. Step 3: Cross multiply
    4,143.72x = 6,215.56 × 1,222.05
  4. Step 4: Simplify right side
    4,143.72x = 7,595,725.10
  5. Step 5: Solve for x
    x = 7,595,725.10/4,143.72
  6. Step 6: Final answer
    x = 1,833.07

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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.