Home / 5,226.21-7,838.64-1,330.38

Finding the Fourth Proportional to 5,226.21, 7,838.64 and 1,330.38

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Solution

The fourth proportional to 5,226.21, 7,838.64 and 1,330.38 is: 1,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.21 : 7,838.64 = 1,330.38 : x
  2. Step 2: Convert to fraction form
    5,226.21/7,838.64 = 1,330.38/x
  3. Step 3: Cross multiply
    5,226.21x = 7,838.64 × 1,330.38
  4. Step 4: Simplify right side
    5,226.21x = 10,428,369.88
  5. Step 5: Solve for x
    x = 10,428,369.88/5,226.21
  6. Step 6: Final answer
    x = 1,995.40

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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.