Home / 3,381.80-4,658.20-2,385.32

Finding the Fourth Proportional to 3,381.80, 4,658.20 and 2,385.32

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Solution

The fourth proportional to 3,381.80, 4,658.20 and 2,385.32 is: 3,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.80 : 4,658.20 = 2,385.32 : x
  2. Step 2: Convert to fraction form
    3,381.80/4,658.20 = 2,385.32/x
  3. Step 3: Cross multiply
    3,381.80x = 4,658.20 × 2,385.32
  4. Step 4: Simplify right side
    3,381.80x = 11,111,303.31
  5. Step 5: Solve for x
    x = 11,111,303.31/3,381.80
  6. Step 6: Final answer
    x = 3,285.62

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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.