Home / 2,319.72-3,479.82-1,539.66

Finding the Fourth Proportional to 2,319.72, 3,479.82 and 1,539.66

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Solution

The fourth proportional to 2,319.72, 3,479.82 and 1,539.66 is: 2,309.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.72 : 3,479.82 = 1,539.66 : x
  2. Step 2: Convert to fraction form
    2,319.72/3,479.82 = 1,539.66/x
  3. Step 3: Cross multiply
    2,319.72x = 3,479.82 × 1,539.66
  4. Step 4: Simplify right side
    2,319.72x = 5,357,739.66
  5. Step 5: Solve for x
    x = 5,357,739.66/2,319.72
  6. Step 6: Final answer
    x = 2,309.65

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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.