Home / 3,790.80-5,685.48-1,841.76

Finding the Fourth Proportional to 3,790.80, 5,685.48 and 1,841.76

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Solution

The fourth proportional to 3,790.80, 5,685.48 and 1,841.76 is: 2,762.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.80 : 5,685.48 = 1,841.76 : x
  2. Step 2: Convert to fraction form
    3,790.80/5,685.48 = 1,841.76/x
  3. Step 3: Cross multiply
    3,790.80x = 5,685.48 × 1,841.76
  4. Step 4: Simplify right side
    3,790.80x = 10,471,289.64
  5. Step 5: Solve for x
    x = 10,471,289.64/3,790.80
  6. Step 6: Final answer
    x = 2,762.29

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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.