Home / 2,909.71-4,366.39-1,178.34

Finding the Fourth Proportional to 2,909.71, 4,366.39 and 1,178.34

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Solution

The fourth proportional to 2,909.71, 4,366.39 and 1,178.34 is: 1,768.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.71 : 4,366.39 = 1,178.34 : x
  2. Step 2: Convert to fraction form
    2,909.71/4,366.39 = 1,178.34/x
  3. Step 3: Cross multiply
    2,909.71x = 4,366.39 × 1,178.34
  4. Step 4: Simplify right side
    2,909.71x = 5,145,091.99
  5. Step 5: Solve for x
    x = 5,145,091.99/2,909.71
  6. Step 6: Final answer
    x = 1,768.25

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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.