Home / 2,909.06-4,364.22-961.20

Finding the Fourth Proportional to 2,909.06, 4,364.22 and 961.20

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Solution

The fourth proportional to 2,909.06, 4,364.22 and 961.20 is: 1,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.06 : 4,364.22 = 961.20 : x
  2. Step 2: Convert to fraction form
    2,909.06/4,364.22 = 961.20/x
  3. Step 3: Cross multiply
    2,909.06x = 4,364.22 × 961.20
  4. Step 4: Simplify right side
    2,909.06x = 4,194,888.26
  5. Step 5: Solve for x
    x = 4,194,888.26/2,909.06
  6. Step 6: Final answer
    x = 1,442.01

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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.