Home / 2,909.76-4,364.84-1,747.68

Finding the Fourth Proportional to 2,909.76, 4,364.84 and 1,747.68

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Solution

The fourth proportional to 2,909.76, 4,364.84 and 1,747.68 is: 2,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.76 : 4,364.84 = 1,747.68 : x
  2. Step 2: Convert to fraction form
    2,909.76/4,364.84 = 1,747.68/x
  3. Step 3: Cross multiply
    2,909.76x = 4,364.84 × 1,747.68
  4. Step 4: Simplify right side
    2,909.76x = 7,628,343.57
  5. Step 5: Solve for x
    x = 7,628,343.57/2,909.76
  6. Step 6: Final answer
    x = 2,621.64

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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.