Home / 3,188.48-4,400.20-1,929.77

Finding the Fourth Proportional to 3,188.48, 4,400.20 and 1,929.77

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Solution

The fourth proportional to 3,188.48, 4,400.20 and 1,929.77 is: 2,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.48 : 4,400.20 = 1,929.77 : x
  2. Step 2: Convert to fraction form
    3,188.48/4,400.20 = 1,929.77/x
  3. Step 3: Cross multiply
    3,188.48x = 4,400.20 × 1,929.77
  4. Step 4: Simplify right side
    3,188.48x = 8,491,353.06
  5. Step 5: Solve for x
    x = 8,491,353.06/3,188.48
  6. Step 6: Final answer
    x = 2,663.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.