Home / 6,427.45-8,874.01-4,040.69

Finding the Fourth Proportional to 6,427.45, 8,874.01 and 4,040.69

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Solution

The fourth proportional to 6,427.45, 8,874.01 and 4,040.69 is: 5,578.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.45 : 8,874.01 = 4,040.69 : x
  2. Step 2: Convert to fraction form
    6,427.45/8,874.01 = 4,040.69/x
  3. Step 3: Cross multiply
    6,427.45x = 8,874.01 × 4,040.69
  4. Step 4: Simplify right side
    6,427.45x = 35,857,061.42
  5. Step 5: Solve for x
    x = 35,857,061.42/6,427.45
  6. Step 6: Final answer
    x = 5,578.74

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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.