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Finding the Fourth Proportional to 3,101.63, 4,280.24 and 1,775.32

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Solution

The fourth proportional to 3,101.63, 4,280.24 and 1,775.32 is: 2,449.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.63 : 4,280.24 = 1,775.32 : x
  2. Step 2: Convert to fraction form
    3,101.63/4,280.24 = 1,775.32/x
  3. Step 3: Cross multiply
    3,101.63x = 4,280.24 × 1,775.32
  4. Step 4: Simplify right side
    3,101.63x = 7,598,789.41
  5. Step 5: Solve for x
    x = 7,598,789.41/3,101.63
  6. Step 6: Final answer
    x = 2,449.94

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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.