Home / 3,139.66-4,705.83-1,404.64

Finding the Fourth Proportional to 3,139.66, 4,705.83 and 1,404.64

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Solution

The fourth proportional to 3,139.66, 4,705.83 and 1,404.64 is: 2,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.66 : 4,705.83 = 1,404.64 : x
  2. Step 2: Convert to fraction form
    3,139.66/4,705.83 = 1,404.64/x
  3. Step 3: Cross multiply
    3,139.66x = 4,705.83 × 1,404.64
  4. Step 4: Simplify right side
    3,139.66x = 6,609,997.05
  5. Step 5: Solve for x
    x = 6,609,997.05/3,139.66
  6. Step 6: Final answer
    x = 2,105.32

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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.