Home / 3,790.86-5,686.56-1,193.76

Finding the Fourth Proportional to 3,790.86, 5,686.56 and 1,193.76

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Solution

The fourth proportional to 3,790.86, 5,686.56 and 1,193.76 is: 1,790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.86 : 5,686.56 = 1,193.76 : x
  2. Step 2: Convert to fraction form
    3,790.86/5,686.56 = 1,193.76/x
  3. Step 3: Cross multiply
    3,790.86x = 5,686.56 × 1,193.76
  4. Step 4: Simplify right side
    3,790.86x = 6,788,387.87
  5. Step 5: Solve for x
    x = 6,788,387.87/3,790.86
  6. Step 6: Final answer
    x = 1,790.73

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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.