Home / 2,074.13-3,111.30-613.43

Finding the Fourth Proportional to 2,074.13, 3,111.30 and 613.43

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Solution

The fourth proportional to 2,074.13, 3,111.30 and 613.43 is: 920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.13 : 3,111.30 = 613.43 : x
  2. Step 2: Convert to fraction form
    2,074.13/3,111.30 = 613.43/x
  3. Step 3: Cross multiply
    2,074.13x = 3,111.30 × 613.43
  4. Step 4: Simplify right side
    2,074.13x = 1,908,564.76
  5. Step 5: Solve for x
    x = 1,908,564.76/2,074.13
  6. Step 6: Final answer
    x = 920.18

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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.