Home / 7,625.91-11,430.96-3,919.89

Finding the Fourth Proportional to 7,625.91, 11,430.96 and 3,919.89

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Solution

The fourth proportional to 7,625.91, 11,430.96 and 3,919.89 is: 5,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.91 : 11,430.96 = 3,919.89 : x
  2. Step 2: Convert to fraction form
    7,625.91/11,430.96 = 3,919.89/x
  3. Step 3: Cross multiply
    7,625.91x = 11,430.96 × 3,919.89
  4. Step 4: Simplify right side
    7,625.91x = 44,808,105.79
  5. Step 5: Solve for x
    x = 44,808,105.79/7,625.91
  6. Step 6: Final answer
    x = 5,875.77

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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.