Home / 4,201.72-6,302.58-1,428.70

Finding the Fourth Proportional to 4,201.72, 6,302.58 and 1,428.70

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Solution

The fourth proportional to 4,201.72, 6,302.58 and 1,428.70 is: 2,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.72 : 6,302.58 = 1,428.70 : x
  2. Step 2: Convert to fraction form
    4,201.72/6,302.58 = 1,428.70/x
  3. Step 3: Cross multiply
    4,201.72x = 6,302.58 × 1,428.70
  4. Step 4: Simplify right side
    4,201.72x = 9,004,496.05
  5. Step 5: Solve for x
    x = 9,004,496.05/4,201.72
  6. Step 6: Final answer
    x = 2,143.05

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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.