Home / 2,720.18-3,749.42-1,834.45

Finding the Fourth Proportional to 2,720.18, 3,749.42 and 1,834.45

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Solution

The fourth proportional to 2,720.18, 3,749.42 and 1,834.45 is: 2,528.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.18 : 3,749.42 = 1,834.45 : x
  2. Step 2: Convert to fraction form
    2,720.18/3,749.42 = 1,834.45/x
  3. Step 3: Cross multiply
    2,720.18x = 3,749.42 × 1,834.45
  4. Step 4: Simplify right side
    2,720.18x = 6,878,118.73
  5. Step 5: Solve for x
    x = 6,878,118.73/2,720.18
  6. Step 6: Final answer
    x = 2,528.55

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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.