Home / 2,580.41-3,869.93-1,119.22

Finding the Fourth Proportional to 2,580.41, 3,869.93 and 1,119.22

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Solution

The fourth proportional to 2,580.41, 3,869.93 and 1,119.22 is: 1,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.41 : 3,869.93 = 1,119.22 : x
  2. Step 2: Convert to fraction form
    2,580.41/3,869.93 = 1,119.22/x
  3. Step 3: Cross multiply
    2,580.41x = 3,869.93 × 1,119.22
  4. Step 4: Simplify right side
    2,580.41x = 4,331,297.46
  5. Step 5: Solve for x
    x = 4,331,297.46/2,580.41
  6. Step 6: Final answer
    x = 1,678.53

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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.