Home / 2,790.28-3,849.42-1,742.68

Finding the Fourth Proportional to 2,790.28, 3,849.42 and 1,742.68

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Solution

The fourth proportional to 2,790.28, 3,849.42 and 1,742.68 is: 2,404.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.28 : 3,849.42 = 1,742.68 : x
  2. Step 2: Convert to fraction form
    2,790.28/3,849.42 = 1,742.68/x
  3. Step 3: Cross multiply
    2,790.28x = 3,849.42 × 1,742.68
  4. Step 4: Simplify right side
    2,790.28x = 6,708,307.25
  5. Step 5: Solve for x
    x = 6,708,307.25/2,790.28
  6. Step 6: Final answer
    x = 2,404.17

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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.