Home / 7,790.90-11,686.96-3,844.28

Finding the Fourth Proportional to 7,790.90, 11,686.96 and 3,844.28

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Solution

The fourth proportional to 7,790.90, 11,686.96 and 3,844.28 is: 5,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.90 : 11,686.96 = 3,844.28 : x
  2. Step 2: Convert to fraction form
    7,790.90/11,686.96 = 3,844.28/x
  3. Step 3: Cross multiply
    7,790.90x = 11,686.96 × 3,844.28
  4. Step 4: Simplify right side
    7,790.90x = 44,927,888.15
  5. Step 5: Solve for x
    x = 44,927,888.15/7,790.90
  6. Step 6: Final answer
    x = 5,766.71

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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.