Home / 5,621.96-7,759.14-5,449.88

Finding the Fourth Proportional to 5,621.96, 7,759.14 and 5,449.88

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Solution

The fourth proportional to 5,621.96, 7,759.14 and 5,449.88 is: 7,521.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.96 : 7,759.14 = 5,449.88 : x
  2. Step 2: Convert to fraction form
    5,621.96/7,759.14 = 5,449.88/x
  3. Step 3: Cross multiply
    5,621.96x = 7,759.14 × 5,449.88
  4. Step 4: Simplify right side
    5,621.96x = 42,286,381.90
  5. Step 5: Solve for x
    x = 42,286,381.90/5,621.96
  6. Step 6: Final answer
    x = 7,521.64

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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.