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Finding the Fourth Proportional to 3,463.75, 4,779.98 and 1,891.84

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Solution

The fourth proportional to 3,463.75, 4,779.98 and 1,891.84 is: 2,610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.75 : 4,779.98 = 1,891.84 : x
  2. Step 2: Convert to fraction form
    3,463.75/4,779.98 = 1,891.84/x
  3. Step 3: Cross multiply
    3,463.75x = 4,779.98 × 1,891.84
  4. Step 4: Simplify right side
    3,463.75x = 9,042,957.36
  5. Step 5: Solve for x
    x = 9,042,957.36/3,463.75
  6. Step 6: Final answer
    x = 2,610.74

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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.