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Finding the Fourth Proportional to 3,134.56, 4,325.72 and 1,955.56

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Solution

The fourth proportional to 3,134.56, 4,325.72 and 1,955.56 is: 2,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.56 : 4,325.72 = 1,955.56 : x
  2. Step 2: Convert to fraction form
    3,134.56/4,325.72 = 1,955.56/x
  3. Step 3: Cross multiply
    3,134.56x = 4,325.72 × 1,955.56
  4. Step 4: Simplify right side
    3,134.56x = 8,459,205.00
  5. Step 5: Solve for x
    x = 8,459,205.00/3,134.56
  6. Step 6: Final answer
    x = 2,698.69

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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.