Home / 2,578.06-3,865.46-1,424.62

Finding the Fourth Proportional to 2,578.06, 3,865.46 and 1,424.62

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Solution

The fourth proportional to 2,578.06, 3,865.46 and 1,424.62 is: 2,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.06 : 3,865.46 = 1,424.62 : x
  2. Step 2: Convert to fraction form
    2,578.06/3,865.46 = 1,424.62/x
  3. Step 3: Cross multiply
    2,578.06x = 3,865.46 × 1,424.62
  4. Step 4: Simplify right side
    2,578.06x = 5,506,811.63
  5. Step 5: Solve for x
    x = 5,506,811.63/2,578.06
  6. Step 6: Final answer
    x = 2,136.03

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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.