Home / 5,180.10-7,763.92-1,891.40

Finding the Fourth Proportional to 5,180.10, 7,763.92 and 1,891.40

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Solution

The fourth proportional to 5,180.10, 7,763.92 and 1,891.40 is: 2,834.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.10 : 7,763.92 = 1,891.40 : x
  2. Step 2: Convert to fraction form
    5,180.10/7,763.92 = 1,891.40/x
  3. Step 3: Cross multiply
    5,180.10x = 7,763.92 × 1,891.40
  4. Step 4: Simplify right side
    5,180.10x = 14,684,678.29
  5. Step 5: Solve for x
    x = 14,684,678.29/5,180.10
  6. Step 6: Final answer
    x = 2,834.83

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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.