Home / 1,610.52-2,416.88-789.36

Finding the Fourth Proportional to 1,610.52, 2,416.88 and 789.36

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Solution

The fourth proportional to 1,610.52, 2,416.88 and 789.36 is: 1,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.52 : 2,416.88 = 789.36 : x
  2. Step 2: Convert to fraction form
    1,610.52/2,416.88 = 789.36/x
  3. Step 3: Cross multiply
    1,610.52x = 2,416.88 × 789.36
  4. Step 4: Simplify right side
    1,610.52x = 1,907,788.40
  5. Step 5: Solve for x
    x = 1,907,788.40/1,610.52
  6. Step 6: Final answer
    x = 1,184.58

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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.