Home / 6,690.31-10,028.10-4,226.29

Finding the Fourth Proportional to 6,690.31, 10,028.10 and 4,226.29

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Solution

The fourth proportional to 6,690.31, 10,028.10 and 4,226.29 is: 6,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.31 : 10,028.10 = 4,226.29 : x
  2. Step 2: Convert to fraction form
    6,690.31/10,028.10 = 4,226.29/x
  3. Step 3: Cross multiply
    6,690.31x = 10,028.10 × 4,226.29
  4. Step 4: Simplify right side
    6,690.31x = 42,381,658.75
  5. Step 5: Solve for x
    x = 42,381,658.75/6,690.31
  6. Step 6: Final answer
    x = 6,334.78

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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.