Home / 3,790.67-5,686.91-1,325.73

Finding the Fourth Proportional to 3,790.67, 5,686.91 and 1,325.73

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Solution

The fourth proportional to 3,790.67, 5,686.91 and 1,325.73 is: 1,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.67 : 5,686.91 = 1,325.73 : x
  2. Step 2: Convert to fraction form
    3,790.67/5,686.91 = 1,325.73/x
  3. Step 3: Cross multiply
    3,790.67x = 5,686.91 × 1,325.73
  4. Step 4: Simplify right side
    3,790.67x = 7,539,326.86
  5. Step 5: Solve for x
    x = 7,539,326.86/3,790.67
  6. Step 6: Final answer
    x = 1,988.92

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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.