Home / 4,783.71-7,175.97-1,320.96

Finding the Fourth Proportional to 4,783.71, 7,175.97 and 1,320.96

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Solution

The fourth proportional to 4,783.71, 7,175.97 and 1,320.96 is: 1,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,783.71 : 7,175.97 = 1,320.96 : x
  2. Step 2: Convert to fraction form
    4,783.71/7,175.97 = 1,320.96/x
  3. Step 3: Cross multiply
    4,783.71x = 7,175.97 × 1,320.96
  4. Step 4: Simplify right side
    4,783.71x = 9,479,133.45
  5. Step 5: Solve for x
    x = 9,479,133.45/4,783.71
  6. Step 6: Final answer
    x = 1,981.55

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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.