Home / 5,522.11-7,621.63-3,398.69

Finding the Fourth Proportional to 5,522.11, 7,621.63 and 3,398.69

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Solution

The fourth proportional to 5,522.11, 7,621.63 and 3,398.69 is: 4,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,522.11 : 7,621.63 = 3,398.69 : x
  2. Step 2: Convert to fraction form
    5,522.11/7,621.63 = 3,398.69/x
  3. Step 3: Cross multiply
    5,522.11x = 7,621.63 × 3,398.69
  4. Step 4: Simplify right side
    5,522.11x = 25,903,568.22
  5. Step 5: Solve for x
    x = 25,903,568.22/5,522.11
  6. Step 6: Final answer
    x = 4,690.88

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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.