Home / 3,239.20-4,470-1,822.96

Finding the Fourth Proportional to 3,239.20, 4,470 and 1,822.96

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Solution

The fourth proportional to 3,239.20, 4,470 and 1,822.96 is: 2,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.20 : 4,470 = 1,822.96 : x
  2. Step 2: Convert to fraction form
    3,239.20/4,470 = 1,822.96/x
  3. Step 3: Cross multiply
    3,239.20x = 4,470 × 1,822.96
  4. Step 4: Simplify right side
    3,239.20x = 8,148,631.20
  5. Step 5: Solve for x
    x = 8,148,631.20/3,239.20
  6. Step 6: Final answer
    x = 2,515.63

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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.