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Finding the Fourth Proportional to 4,980.90, 6,873.78 and 2,743.02

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Solution

The fourth proportional to 4,980.90, 6,873.78 and 2,743.02 is: 3,785.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.90 : 6,873.78 = 2,743.02 : x
  2. Step 2: Convert to fraction form
    4,980.90/6,873.78 = 2,743.02/x
  3. Step 3: Cross multiply
    4,980.90x = 6,873.78 × 2,743.02
  4. Step 4: Simplify right side
    4,980.90x = 18,854,916.02
  5. Step 5: Solve for x
    x = 18,854,916.02/4,980.90
  6. Step 6: Final answer
    x = 3,785.44

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1.5x scale

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.