Home / 3,074.82-4,612.08-1,126.88

Finding the Fourth Proportional to 3,074.82, 4,612.08 and 1,126.88

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Solution

The fourth proportional to 3,074.82, 4,612.08 and 1,126.88 is: 1,690.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.82 : 4,612.08 = 1,126.88 : x
  2. Step 2: Convert to fraction form
    3,074.82/4,612.08 = 1,126.88/x
  3. Step 3: Cross multiply
    3,074.82x = 4,612.08 × 1,126.88
  4. Step 4: Simplify right side
    3,074.82x = 5,197,260.71
  5. Step 5: Solve for x
    x = 5,197,260.71/3,074.82
  6. Step 6: Final answer
    x = 1,690.27

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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.