Home / 4,255.75-6,386.51-1,519.75

Finding the Fourth Proportional to 4,255.75, 6,386.51 and 1,519.75

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Solution

The fourth proportional to 4,255.75, 6,386.51 and 1,519.75 is: 2,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.75 : 6,386.51 = 1,519.75 : x
  2. Step 2: Convert to fraction form
    4,255.75/6,386.51 = 1,519.75/x
  3. Step 3: Cross multiply
    4,255.75x = 6,386.51 × 1,519.75
  4. Step 4: Simplify right side
    4,255.75x = 9,705,898.57
  5. Step 5: Solve for x
    x = 9,705,898.57/4,255.75
  6. Step 6: Final answer
    x = 2,280.66

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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.