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Finding the Fourth Proportional to 3,406.76, 4,701.61 and 1,914.98

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Solution

The fourth proportional to 3,406.76, 4,701.61 and 1,914.98 is: 2,642.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.76 : 4,701.61 = 1,914.98 : x
  2. Step 2: Convert to fraction form
    3,406.76/4,701.61 = 1,914.98/x
  3. Step 3: Cross multiply
    3,406.76x = 4,701.61 × 1,914.98
  4. Step 4: Simplify right side
    3,406.76x = 9,003,468.00
  5. Step 5: Solve for x
    x = 9,003,468.00/3,406.76
  6. Step 6: Final answer
    x = 2,642.83

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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.