Home / 3,785.27-5,678.10-1,152.57

Finding the Fourth Proportional to 3,785.27, 5,678.10 and 1,152.57

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Solution

The fourth proportional to 3,785.27, 5,678.10 and 1,152.57 is: 1,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.27 : 5,678.10 = 1,152.57 : x
  2. Step 2: Convert to fraction form
    3,785.27/5,678.10 = 1,152.57/x
  3. Step 3: Cross multiply
    3,785.27x = 5,678.10 × 1,152.57
  4. Step 4: Simplify right side
    3,785.27x = 6,544,407.72
  5. Step 5: Solve for x
    x = 6,544,407.72/3,785.27
  6. Step 6: Final answer
    x = 1,728.92

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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.