Home / 3,719.67-5,133.75-2,148.68

Finding the Fourth Proportional to 3,719.67, 5,133.75 and 2,148.68

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Solution

The fourth proportional to 3,719.67, 5,133.75 and 2,148.68 is: 2,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.67 : 5,133.75 = 2,148.68 : x
  2. Step 2: Convert to fraction form
    3,719.67/5,133.75 = 2,148.68/x
  3. Step 3: Cross multiply
    3,719.67x = 5,133.75 × 2,148.68
  4. Step 4: Simplify right side
    3,719.67x = 11,030,779.98
  5. Step 5: Solve for x
    x = 11,030,779.98/3,719.67
  6. Step 6: Final answer
    x = 2,965.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.