Home / 2,920.49-4,377.68-1,276.60

Finding the Fourth Proportional to 2,920.49, 4,377.68 and 1,276.60

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Solution

The fourth proportional to 2,920.49, 4,377.68 and 1,276.60 is: 1,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.49 : 4,377.68 = 1,276.60 : x
  2. Step 2: Convert to fraction form
    2,920.49/4,377.68 = 1,276.60/x
  3. Step 3: Cross multiply
    2,920.49x = 4,377.68 × 1,276.60
  4. Step 4: Simplify right side
    2,920.49x = 5,588,546.29
  5. Step 5: Solve for x
    x = 5,588,546.29/2,920.49
  6. Step 6: Final answer
    x = 1,913.56

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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.