Home / 2,629.87-3,946.39-1,520.71

Finding the Fourth Proportional to 2,629.87, 3,946.39 and 1,520.71

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Solution

The fourth proportional to 2,629.87, 3,946.39 and 1,520.71 is: 2,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.87 : 3,946.39 = 1,520.71 : x
  2. Step 2: Convert to fraction form
    2,629.87/3,946.39 = 1,520.71/x
  3. Step 3: Cross multiply
    2,629.87x = 3,946.39 × 1,520.71
  4. Step 4: Simplify right side
    2,629.87x = 6,001,301.07
  5. Step 5: Solve for x
    x = 6,001,301.07/2,629.87
  6. Step 6: Final answer
    x = 2,281.98

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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.