Home / 3,180.96-4,389.57-1,764.70

Finding the Fourth Proportional to 3,180.96, 4,389.57 and 1,764.70

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Solution

The fourth proportional to 3,180.96, 4,389.57 and 1,764.70 is: 2,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.96 : 4,389.57 = 1,764.70 : x
  2. Step 2: Convert to fraction form
    3,180.96/4,389.57 = 1,764.70/x
  3. Step 3: Cross multiply
    3,180.96x = 4,389.57 × 1,764.70
  4. Step 4: Simplify right side
    3,180.96x = 7,746,274.18
  5. Step 5: Solve for x
    x = 7,746,274.18/3,180.96
  6. Step 6: Final answer
    x = 2,435.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.