Home / 4,276.78-6,407.88-3,455.44

Finding the Fourth Proportional to 4,276.78, 6,407.88 and 3,455.44

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Solution

The fourth proportional to 4,276.78, 6,407.88 and 3,455.44 is: 5,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.78 : 6,407.88 = 3,455.44 : x
  2. Step 2: Convert to fraction form
    4,276.78/6,407.88 = 3,455.44/x
  3. Step 3: Cross multiply
    4,276.78x = 6,407.88 × 3,455.44
  4. Step 4: Simplify right side
    4,276.78x = 22,142,044.87
  5. Step 5: Solve for x
    x = 22,142,044.87/4,276.78
  6. Step 6: Final answer
    x = 5,177.27

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1.5x scale

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.