Home / 3,364.78-5,045.89-1,539.50

Finding the Fourth Proportional to 3,364.78, 5,045.89 and 1,539.50

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Solution

The fourth proportional to 3,364.78, 5,045.89 and 1,539.50 is: 2,308.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.78 : 5,045.89 = 1,539.50 : x
  2. Step 2: Convert to fraction form
    3,364.78/5,045.89 = 1,539.50/x
  3. Step 3: Cross multiply
    3,364.78x = 5,045.89 × 1,539.50
  4. Step 4: Simplify right side
    3,364.78x = 7,768,147.66
  5. Step 5: Solve for x
    x = 7,768,147.66/3,364.78
  6. Step 6: Final answer
    x = 2,308.66

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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.