Home / 4,103.36-6,129.44-2,705.12

Finding the Fourth Proportional to 4,103.36, 6,129.44 and 2,705.12

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Solution

The fourth proportional to 4,103.36, 6,129.44 and 2,705.12 is: 4,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.36 : 6,129.44 = 2,705.12 : x
  2. Step 2: Convert to fraction form
    4,103.36/6,129.44 = 2,705.12/x
  3. Step 3: Cross multiply
    4,103.36x = 6,129.44 × 2,705.12
  4. Step 4: Simplify right side
    4,103.36x = 16,580,870.73
  5. Step 5: Solve for x
    x = 16,580,870.73/4,103.36
  6. Step 6: Final answer
    x = 4,040.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.