Home / 2,909.30-4,364.60-961.37

Finding the Fourth Proportional to 2,909.30, 4,364.60 and 961.37

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Solution

The fourth proportional to 2,909.30, 4,364.60 and 961.37 is: 1,442.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.30 : 4,364.60 = 961.37 : x
  2. Step 2: Convert to fraction form
    2,909.30/4,364.60 = 961.37/x
  3. Step 3: Cross multiply
    2,909.30x = 4,364.60 × 961.37
  4. Step 4: Simplify right side
    2,909.30x = 4,195,995.50
  5. Step 5: Solve for x
    x = 4,195,995.50/2,909.30
  6. Step 6: Final answer
    x = 1,442.27

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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.