Home / 4,359.78-6,539.64-1,281.78

Finding the Fourth Proportional to 4,359.78, 6,539.64 and 1,281.78

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Solution

The fourth proportional to 4,359.78, 6,539.64 and 1,281.78 is: 1,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,359.78 : 6,539.64 = 1,281.78 : x
  2. Step 2: Convert to fraction form
    4,359.78/6,539.64 = 1,281.78/x
  3. Step 3: Cross multiply
    4,359.78x = 6,539.64 × 1,281.78
  4. Step 4: Simplify right side
    4,359.78x = 8,382,379.76
  5. Step 5: Solve for x
    x = 8,382,379.76/4,359.78
  6. Step 6: Final answer
    x = 1,922.66

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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.