Home / 3,380.31-4,664.78-1,888.25

Finding the Fourth Proportional to 3,380.31, 4,664.78 and 1,888.25

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Solution

The fourth proportional to 3,380.31, 4,664.78 and 1,888.25 is: 2,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.31 : 4,664.78 = 1,888.25 : x
  2. Step 2: Convert to fraction form
    3,380.31/4,664.78 = 1,888.25/x
  3. Step 3: Cross multiply
    3,380.31x = 4,664.78 × 1,888.25
  4. Step 4: Simplify right side
    3,380.31x = 8,808,270.84
  5. Step 5: Solve for x
    x = 8,808,270.84/3,380.31
  6. Step 6: Final answer
    x = 2,605.76

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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.