Home / 3,678.20-5,517.30-1,950.20

Finding the Fourth Proportional to 3,678.20, 5,517.30 and 1,950.20

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Solution

The fourth proportional to 3,678.20, 5,517.30 and 1,950.20 is: 2,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.20 : 5,517.30 = 1,950.20 : x
  2. Step 2: Convert to fraction form
    3,678.20/5,517.30 = 1,950.20/x
  3. Step 3: Cross multiply
    3,678.20x = 5,517.30 × 1,950.20
  4. Step 4: Simplify right side
    3,678.20x = 10,759,838.46
  5. Step 5: Solve for x
    x = 10,759,838.46/3,678.20
  6. Step 6: Final answer
    x = 2,925.30

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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.