Home / 3,880.50-5,820.68-1,283.38

Finding the Fourth Proportional to 3,880.50, 5,820.68 and 1,283.38

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Solution

The fourth proportional to 3,880.50, 5,820.68 and 1,283.38 is: 1,925.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.50 : 5,820.68 = 1,283.38 : x
  2. Step 2: Convert to fraction form
    3,880.50/5,820.68 = 1,283.38/x
  3. Step 3: Cross multiply
    3,880.50x = 5,820.68 × 1,283.38
  4. Step 4: Simplify right side
    3,880.50x = 7,470,144.30
  5. Step 5: Solve for x
    x = 7,470,144.30/3,880.50
  6. Step 6: Final answer
    x = 1,925.05

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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.