Home / 3,074.54-4,612.38-1,687.12

Finding the Fourth Proportional to 3,074.54, 4,612.38 and 1,687.12

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Solution

The fourth proportional to 3,074.54, 4,612.38 and 1,687.12 is: 2,530.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.54 : 4,612.38 = 1,687.12 : x
  2. Step 2: Convert to fraction form
    3,074.54/4,612.38 = 1,687.12/x
  3. Step 3: Cross multiply
    3,074.54x = 4,612.38 × 1,687.12
  4. Step 4: Simplify right side
    3,074.54x = 7,781,638.55
  5. Step 5: Solve for x
    x = 7,781,638.55/3,074.54
  6. Step 6: Final answer
    x = 2,530.99

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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.