Home / 4,292.72-6,428.13-2,095.70

Finding the Fourth Proportional to 4,292.72, 6,428.13 and 2,095.70

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Solution

The fourth proportional to 4,292.72, 6,428.13 and 2,095.70 is: 3,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.72 : 6,428.13 = 2,095.70 : x
  2. Step 2: Convert to fraction form
    4,292.72/6,428.13 = 2,095.70/x
  3. Step 3: Cross multiply
    4,292.72x = 6,428.13 × 2,095.70
  4. Step 4: Simplify right side
    4,292.72x = 13,471,399.90
  5. Step 5: Solve for x
    x = 13,471,399.90/4,292.72
  6. Step 6: Final answer
    x = 3,138.20

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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.