Home / 7,830.83-11,750.36-3,451.29

Finding the Fourth Proportional to 7,830.83, 11,750.36 and 3,451.29

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Solution

The fourth proportional to 7,830.83, 11,750.36 and 3,451.29 is: 5,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.83 : 11,750.36 = 3,451.29 : x
  2. Step 2: Convert to fraction form
    7,830.83/11,750.36 = 3,451.29/x
  3. Step 3: Cross multiply
    7,830.83x = 11,750.36 × 3,451.29
  4. Step 4: Simplify right side
    7,830.83x = 40,553,899.96
  5. Step 5: Solve for x
    x = 40,553,899.96/7,830.83
  6. Step 6: Final answer
    x = 5,178.75

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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.