Home / 2,920.11-4,375.80-1,457.25

Finding the Fourth Proportional to 2,920.11, 4,375.80 and 1,457.25

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Solution

The fourth proportional to 2,920.11, 4,375.80 and 1,457.25 is: 2,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.11 : 4,375.80 = 1,457.25 : x
  2. Step 2: Convert to fraction form
    2,920.11/4,375.80 = 1,457.25/x
  3. Step 3: Cross multiply
    2,920.11x = 4,375.80 × 1,457.25
  4. Step 4: Simplify right side
    2,920.11x = 6,376,634.55
  5. Step 5: Solve for x
    x = 6,376,634.55/2,920.11
  6. Step 6: Final answer
    x = 2,183.70

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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.