Home / 2,762.60-4,146.33-1,119.11

Finding the Fourth Proportional to 2,762.60, 4,146.33 and 1,119.11

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Solution

The fourth proportional to 2,762.60, 4,146.33 and 1,119.11 is: 1,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.60 : 4,146.33 = 1,119.11 : x
  2. Step 2: Convert to fraction form
    2,762.60/4,146.33 = 1,119.11/x
  3. Step 3: Cross multiply
    2,762.60x = 4,146.33 × 1,119.11
  4. Step 4: Simplify right side
    2,762.60x = 4,640,199.37
  5. Step 5: Solve for x
    x = 4,640,199.37/2,762.60
  6. Step 6: Final answer
    x = 1,679.65

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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.