Home / 3,519.63-4,856.56-2,990.64

Finding the Fourth Proportional to 3,519.63, 4,856.56 and 2,990.64

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Solution

The fourth proportional to 3,519.63, 4,856.56 and 2,990.64 is: 4,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.63 : 4,856.56 = 2,990.64 : x
  2. Step 2: Convert to fraction form
    3,519.63/4,856.56 = 2,990.64/x
  3. Step 3: Cross multiply
    3,519.63x = 4,856.56 × 2,990.64
  4. Step 4: Simplify right side
    3,519.63x = 14,524,222.60
  5. Step 5: Solve for x
    x = 14,524,222.60/3,519.63
  6. Step 6: Final answer
    x = 4,126.63

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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.