Home / 3,380.45-4,664.63-1,888.31

Finding the Fourth Proportional to 3,380.45, 4,664.63 and 1,888.31

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Solution

The fourth proportional to 3,380.45, 4,664.63 and 1,888.31 is: 2,605.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.45 : 4,664.63 = 1,888.31 : x
  2. Step 2: Convert to fraction form
    3,380.45/4,664.63 = 1,888.31/x
  3. Step 3: Cross multiply
    3,380.45x = 4,664.63 × 1,888.31
  4. Step 4: Simplify right side
    3,380.45x = 8,808,283.86
  5. Step 5: Solve for x
    x = 8,808,283.86/3,380.45
  6. Step 6: Final answer
    x = 2,605.66

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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.