Home / 5,577.55-7,695.46-3,984.68

Finding the Fourth Proportional to 5,577.55, 7,695.46 and 3,984.68

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Solution

The fourth proportional to 5,577.55, 7,695.46 and 3,984.68 is: 5,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.55 : 7,695.46 = 3,984.68 : x
  2. Step 2: Convert to fraction form
    5,577.55/7,695.46 = 3,984.68/x
  3. Step 3: Cross multiply
    5,577.55x = 7,695.46 × 3,984.68
  4. Step 4: Simplify right side
    5,577.55x = 30,663,954.83
  5. Step 5: Solve for x
    x = 30,663,954.83/5,577.55
  6. Step 6: Final answer
    x = 5,497.75

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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.