Home / 1,816.20-2,722.68-949.50

Finding the Fourth Proportional to 1,816.20, 2,722.68 and 949.50

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Solution

The fourth proportional to 1,816.20, 2,722.68 and 949.50 is: 1,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.20 : 2,722.68 = 949.50 : x
  2. Step 2: Convert to fraction form
    1,816.20/2,722.68 = 949.50/x
  3. Step 3: Cross multiply
    1,816.20x = 2,722.68 × 949.50
  4. Step 4: Simplify right side
    1,816.20x = 2,585,184.66
  5. Step 5: Solve for x
    x = 2,585,184.66/1,816.20
  6. Step 6: Final answer
    x = 1,423.40

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1.5x scale

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.