Home / 5,779.44-7,976.52-3,688.56

Finding the Fourth Proportional to 5,779.44, 7,976.52 and 3,688.56

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Solution

The fourth proportional to 5,779.44, 7,976.52 and 3,688.56 is: 5,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.44 : 7,976.52 = 3,688.56 : x
  2. Step 2: Convert to fraction form
    5,779.44/7,976.52 = 3,688.56/x
  3. Step 3: Cross multiply
    5,779.44x = 7,976.52 × 3,688.56
  4. Step 4: Simplify right side
    5,779.44x = 29,421,872.61
  5. Step 5: Solve for x
    x = 29,421,872.61/5,779.44
  6. Step 6: Final answer
    x = 5,090.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.