Home / 3,818.80-5,728.32-1,624.48

Finding the Fourth Proportional to 3,818.80, 5,728.32 and 1,624.48

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Solution

The fourth proportional to 3,818.80, 5,728.32 and 1,624.48 is: 2,436.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.80 : 5,728.32 = 1,624.48 : x
  2. Step 2: Convert to fraction form
    3,818.80/5,728.32 = 1,624.48/x
  3. Step 3: Cross multiply
    3,818.80x = 5,728.32 × 1,624.48
  4. Step 4: Simplify right side
    3,818.80x = 9,305,541.27
  5. Step 5: Solve for x
    x = 9,305,541.27/3,818.80
  6. Step 6: Final answer
    x = 2,436.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.